Italics= Thoughts

Bold= English 

Underline= Texts

honestly, this oneshot is more crack than it is something i put a lot of thought into. it’s pretty weird, but i hope you guys enjoy this story! also, please tell me what aus or scenarios you want to see in the next oneshot! 

Ryujin took a deep breath and let it out in a soft sigh, joy radiating from her very being. While it did take a few months, she finally got the vacation she's been wanting for a long long time. She looked around the island she was in. 

’While I hate it because of all the work, being rich really does have its benefits. Especially when you’re the heir to such a big business empire. This place is just the best.’

The island she was on was once privately owned by her family. Ryujin used to go here a lot during her childhood, and since then, it always became a sort of safe haven for her. It was unfortunate that she could only go here with the permission of her parents. The place was just too beautiful, with its white sand beach and peaceful atmosphere. The heiress felt like no one could disturb her here.

So, Ryujin decided to show them what she was worth. The blue-haired girl was willing to go far for this island, though her parents never really understood why. And now, after working her off for years, Ryujin has finally been given exclusive ownership to the island. It was no longer anyone else’s, but Shin Ryujin’s.

”I should start going to this place more often now that I own it.” she mumbled to herself.

She strolled around the shore, kicking the random shells on the sand. Off in the distance, she could see the mansion that was built several years ago, even before she was born. Of course, Ryujin kept the exterior the same, however, she had the interior refurbished to her liking. She never really agreed with her parents’ taste. It was too old fashioned.

”If my parents knew why I specifically wanted this island above all else, they probably never have given it to me in the first place.” she said, having no one else to talk to but herself.

Aside from the tranquility and for the sake of having a place to truly relax, Ryujin wanted the place for an even bigger reason. And it was all due to an incident from back in her childhood. However, Ryujin stopped herself from reminiscing and carried on with her mindless roaming.

The girl stopped by two adjacent coconut trees with a hammock tied between them. It was one of her favorite places here. The trees provided just the right amount of shade, and her staff set it up so that no coconuts would ever fall on her unsuspecting head. She simply laid there and closed her eyes.

’This truly is paradise.’ was the last thing she thought before she drifted off to sleep. 

Meanwhile, somewhere under the sea:

A girl who looked no older than Ryujin was swimming among what seemed like a school of baby fishes. She had dark brown hair that reached her shoulders, the movement of the water making it frame her face in an ethereal way. The girl was wearing a flowy seafoam green garment that fluidly followed her movements as she sped through the waters. On her neck was an extravagant necklace adorned with pearls and some multicolored gems, and on her finger was a ring with a strange symbol. Finally, around her head was a circlet bearing identical pearls and gems as her necklace. However, the strangest thing about the girl was that she didn't have legs, but instead a light blue tail, resembling that of a fish.

”Princess, please be careful. I know that you love having fun with the children, but you might end up hitting something.”

A few distances away, watching over her with full attention, was a cat-eyed girl with an onyx tail. Unlike the other who was dressed extravagantly, the only accessory she wore was a simple golden cuff bracelet with a small red ruby. In her right hand, she wielded an intimidating trident. And instead of the flowy, dress-like garment the other was wearing, this one was wearing a golden chest plate with the same symbol on the girl’s ring painted on it. While the princess’s hair was down, she had her hair tied up in a perfect ponytail.

”Oh please Yeji. Let me have my fun! It's rare to get out of the palace like this. Besides, you're the one who taught me to swim this well. There's no way I’ll crash into anything!” the princess shouted in reply, too caught up enjoying her time with the younger fish.

”Don't say I didn't warn you, your highness.” Yeji said tiredly. The princess decided to stop for a few seconds to go to her companion.

”Yeji, what did I say about the formalities? Outside of the palace and official matters, it's just Jisu. You may be my bodyguard, but we've known each other since we were kids! You were just starting your training back then!” And with that Princess Jisu took off once more, swimming with the fishes.

”Whatever you command, Jisu.” Yeji went back to watching over the reckless princess. It was her sworn duty after all.

Back on the land:

Ryujin arose from her short nap. She looked around and saw that the sun was still up. She sighed in relief.

’At least I didn't waste the entire day sleeping.’

”Now, for the biggest reason why I'm here. It's been too long since I've last seen my best friend.” she said to herself, remember a certain pair of cat eyes.

She brought out a specially made phone from her pocket. There was only two models of it in the entire world, yet another perk of being rich. It was waterproof and had a signal that can be received only by its pair. 

”Hey, it's been a while. I finally got the island as I wanted. No worries about sneaking around anymore, it's just me. Text me when you're free, let's meet up at the usual place. I’ll be staying here for a while.”

It took her a while to get a response, but she was happy to hear from her friend. For the past few years, they've only been able to communicate through the very phone in her hand.

”Wow, you really weren't kidding about it, were you Shin? Congratulations I guess. It's been one of your biggest dreams, right? Anyway, I still have things to do down here, but at around midnight, I’ll be there. It's been too long, can't wait to see you. I’ll try my best to go on other days too.”

Ryujin smiled and set off for the mansion. She was getting hungry and was feeling sleepy again. While the hammock was comfortable, her new bed would be a hundred times better. 

’I guess I'll only go out at around eleven then.’

Several hours later:

”I’ll be out fishing, so make sure no one bothers me.” she commanded the chief of staff in the mansion.

”Yes Ms. Ryujin. I'll notify all the staff to stay within the premises.”

Wearing a white oversized shirt, with a plain black sports bra underneath, and some black swimming shorts, Ryujin set out for a little secluded area not far from her favorite hammock. It was a little area hidden by rocks and trees at the shore. Ryujin looked up at the sky and saw the full moon. It made her feel at peace. She brought out her fishing rod and placed some bait, and threw the line into the open sea.

She checked her phone for the time. 11:45 PM, it read. She sighed, she'd have to wait for a few more minutes.

Somewhere, under the sea:

While it did take some effort, Yeji managed to sneak out of the palace. The place was too big and was filled with a lot of other guards like her, making it extra difficult to get out without permission. Sometimes, it made her wonder how the humans have never discovered the humongous structure before.

’I keep forgetting that I was already promoted.’ For quite some time now, Yeji wasn't anything like the guards who patrolled the palace. That was her old job. She was now the one and only protector of the princess. She was part of the royal family’s personal army.

Yeji would usually be more responsible with her duties, never stating too far from the princess, but this occasion was an exception. She even replaced her usual armor and exchanged it with a black garment.  Though, she still kept her trident and cuff with her. It was too important for her to leave without it.

’Man, I’m so dead if I ever get caught.’ she thought, as she navigated around the dark seas, guided only by the moonlight barely piercing its way underwater.

”Hey, what are you doing so far out from the palace?” she suddenly heard from behind. If we're any other person, she'd immediately charge at them with the trident in her hand and force them to secrecy, but no. She couldn't do it to this person.

”What in the HELL are you doing out here Jisu?! Don't you know how dangerous it is for you to be out of the palace, ESPECIALLY at this time?” she yelled at the girl who was now wearing a coral pink version of the clothes she wore earlier. Yeji noticed that she took off her accessories, except her ring.

”I could ask the same of you, my ever so responsible protector. I could have you imprisoned for this. And did it seriously take me sneaking out of the palace just for you to call me by my name?” Yeji knew she couldn't say anything to argue against her.

”Now tell me, what are you doing out here, Hwang Yeji?” the princess asked sternly.

”I was going to meet someone, princess.” Yeji answered dejectedly.

”By the direction you're going, there's no other place to meet but at that island inhabited by humans. Though, there's also that famous cave with the jellyfish. Wait, Yeji, don't tell me you'll meet a lover at that cave for couples!”

”I don't have a lover!!” Yeji protested.

”Whatever you say, lover girl. I’ll go back to the palace now, enjoy!” Jisu then began swimming away, but Yeji caught her wrist.

”Wait, it's too dangerous for you to go back home alone. And I can't accompany you since I have to meet that person. I have no choice, just follow me Jisu. It's safer. And if ever we get caught, I'll take full responsibility.”

”What? Are you sure Yeji? Won't I bother you and your lover?”

”Again, I don't have a lover. We're just friends. And I’m pretty sure they'll be fine with it if you're there. Besides, I am still your guard. It's my duty to make sure you're safe, even if it means breaking the rules.”

”Now come on, I’m almost late.” Yeji pulled on the princess’s wrist, not giving her a chance to reply. They sped through the waters, and Jisu was surprised at how fast Yeji was going. While it kind of scared her, she made sure to grip onto Yeji tightly because she was unfamiliar with the area.

”You seem to know your way around here well, Yeji.”

”Well, I used to get lost here too. After some time, I just memorized the quickest route.” Yeji replied. 

“Wow, I guess that means you visit your lover quite often.”

”I don’t have a lover, princess.”

They soon came across the group of jellyfish that became an icon of the famous cave Jisu was talking about several minutes ago. However, Jisu was surprised that they swam right past it.

”Wait what?” 

”I told you. I don't have a lover.”

”Does that mean you’ll meet your lover on that island? Wow, you sure are one big risk taker Yeji.”

”Never mind.” the guard said, defeated.

A few minutes later, the two finally arrived at the aforementioned island. The two neared the shore and stopped by some tall rocks in the water, hiding them from the eyes of the people on the island. The two then brought their heads out from the water.

”I can't believe I'm saying this but, I’m actually pretty nervous to meet your lover.” Jisu commented.

”For the last time, they're not my lover. We're just friends.”

”Yeah right.”

”Be quiet, now follow me and do exactly what I do, princess. I don't want any humans seeing you.”

The water wasn't deep enought to hide them completely, and Jisu understood the situation completely. The princess watched as her protector timed her movement with the waves and did some complicated turns to conceal herself. Jisu couldn't help but wonder how she hid that trident of hers. She then saw Yeji’s head poke out near the biggest group of rocks by the shore.

Jisu did her best to emulate what Yeji did, and couldn't help but mentally thank her guard for teaching her. For if she didn't, the princess was sure she would have already been caught. When she arrived beside the onyx-tailed girl, Yeji held her hand and she was then led to the shore. Jisu felt herself panic because they could easily be seen by humans at the spot they were at. The princess failed to notice the multiple rocks and trees that could hide her from view. 

”Hey hey, calm down. There's nothing that can hurt you here.” Yeji said soothingly.

”Took you long enough Hwang. I thought you stood me up. And you know, you don't have to do all those just to hide. I’m the boss here and I made sure to keep the staff out of this place. They’re all in the mansion.” Suddenly, another voice sounded further inland. Jisu jumped in shock, and immediately tried to hide behind Yeji. She watched as Yeji pulled a strange-looking square from within her clothing and looked on in awe as it lit up in her hand.

”Sorry Shin, but I’m just on time. You're the one who's impatient. Also, I’d rather be safe than sorry. Especially with the circumstances.” Yeji retorted, showing the time on her phone to Ryujin. Jisu looked at the stranger properly and froze in fear. Those were definitely legs and not a tail. It was a human. So why wasn’t Yeji the least bit afraid? Was she Yeji’s lover? A human?

Jisu felt herself tense up even more as the human approached them.

”Perhaps you're right. It's been too long Yeddong.” Ryujin stuck her fist out and brought it in front of Yeji. The two fist bumped, and Jisu couldn’t feel anything but confusion.

”Too long indeed Ryuddaeng!”

”Wha-?” Jisu let out.

”Oh, yeah. I forgot you had company. I saw you two swimming your way here. Mind introducing us?” Ryujin asked. Yeji moved aside, even with Jisu clinging to her with a vice-like grip.

’Goddamn, she’s pretty.’ Ryujin thought.

”Well, Jisu, this is Shin Ryujin. I’ve met her when we were kids. Ryujin, meet Jisu. The princess of the seas, and heir to the throne.”

”Wow, so childhood friend is all I get? Why can’t you say anything better?” Ryujin said, raising an eyebrow towards  The cat-eyed girl simply let put a playful grin.

”Anyway, it’s a pleasure to meet you, your highness. I’m Shin Ryujin, businesswoman and owner of this island we’re on.” she continued, extending a hand towards the princess. Albeit stunned, Jisu never forgot her manners and shook the offered hand.

“Did you even explain the situation, Yeji? She looks so scared.” she turned to her friend with a questioning look. She looked back to the princess and tried to give her most gentle smile.

”Princess, look, I heard from Yeji that where you’re from, humans have a bad reputation. However, I won’t be like them. I promise I won’t hurt you. And here on this island, no harm will ever come to you. I will personally make sure of that. Besides, Yeji wouldn’t bring you here if she knew it wasn’t safe.”

Lia felt reassured with the human’s words and calmed down, letting go of her bodyguard. Yeji watched with wide eyes at their interaction and felt like she was missing something going on between the two. She’s never seen the princess calm down like this because of a stranger. Even if it was her friend, she didn’t think Lia would trust someone else that much.

”Thank you Ms. Shin.”

”Now now, none of that Miss bull. We’re not in a business meeting. It’s a friendly meet-up! Just call me Ryujin, your highness.” Ryujin said.

”Only if you call me Jisu, Ryujin.” Ryujin smiled at the princess and laughed.

”Of course Jisu! Glad to see you aren’t as stuck up as I imagined you to be.”

”Hey, don’t say stuff like that to her!” Yeji said, suddenly pointing her trident to her friend. Ryujin looked to her friend and laughed.

”Man, you think I’m scared of that thing? Sorry to say Yeddong, but nope. Besides...” Ryujin moved too quickly for Yeji to react, as the blue-haired girl targeted her joints, causing her to let go of the weapon wich was now in Ryujin’s hands. The princess was surprised at how easily she managed to steal her bodyguard’s weapon.

”I’m still better than you at fighting.” The human continued, moving back and expertly twirling the trident around like a baton. Jisu and Yeji watched as Ryujin maneuvered around with the trident, ing it and doing stabbing motions, each done in a perfect and fluid form.

‘Wow, I’ve never seen anyone as good as her. If Ryujin was a mermaid like us, I believe she could even beat the general with skills like that!’ Jisu thought.

Ryujin ended in a complicated turn and finally the trident into Yeji, stopping a mere inch before .

”So, what were you saying earlier?” Yeji looked at her best friend and shook her head, careful to not accidentally hurt herself with her own trident. She took it from Ryujin, who gave it back to her.

”You haven’t changed much, Ryujin. Still as much a show-off like when we were kids.” Yeji commented.

“And you’re still as serious about your job as before. I’m even surprised you still continue to sneak out and meet up with me.” Ryujin responded. She turned to the princess, who was watching them carefully.

”And I’m even more surprised you allowed the princess, of all people, to follow you here to meet up with me, a human. Isn’t that against a lot of rules down there, Ms. Protector-of-the-Princess?” she followed.

“Well, yes. I was on my way here when I found out Jisu was following me. I couldn’t let her go back by herself, and I couldn’t just not go here, so I brought her with me.”

”Hmm, interesting. You sure have some guts, don’t you Jisu?” 

“Well, I knew Yeji sneaked out on some occasions, but I was too curious this time around, so I decided to follow her. I never expected to find out she was meeting a human though. How do you two even know each other?” Jisu asked.

”It’s a rather long story, but do you remember when I went missing for a few days during that one storm when we were kids?” Yeji replied. Jisu nodded, remembering how worried she was for her friend’s safety.

”Well, during a patrol, when my squad was on duty, the storm suddenly arrived and the waters turned rough so it was really hard to swim. We decided to head back immediately, but one of my teammates, Chaeyeon was caught up by a huge wave. I was the closest to her so I tried to help, and I managed to help her back with the others. I just didn’t expect that I would be swept away by a bigger one right after. Before I knew it, I was too far from the team and I was in an unfamiliar area, caught up in a storm. Eventually, I was simply too tired to resist the waves, and I think I ended up hitting my head on a rock of some sort.” she continued.

”Yeji was swept away to this very island, I was just eight at the time. My family was stuck here because of the storm, so I became bored and I decided to roam around by myself. It was when I came to this very shore that I saw an onyx-tailed mermaid. I couldn’t believe it at first, but I was brought to my senses when she woke up was groaning in pain. Yeji was really scared at first, but I did my best to help her when I saw that she was bleeding. It was a blessing that my butler taught me how to do first-aid becuase I kept injuring myself back then.” Ryujin picked up the story and told it to Jisu. The princess’s eyes widened. She never knew her friend went through so much during that time.

She looked to the human and saw her in a different light. Jisu realized that she was not only arrogant or fierce or friendly. Ryujin also had a kind and open heart, which to Jisu was quite rare. She felt stupid believing that all the humans were evil. Shin Ryujin was a living contradiction to that.

”That was the time I realized that not all humans were bad, like what the elders told us. Even when she wanted to call for help, I told Ryujin to keep me a secret, and that’s what she did. She worked hard all by herself and nursed me back to health even when we were both kids. I don’t think I would have made it back alive without Ryujin. While I was here, we shared stories of our lives. Since then, we’ve become close friends.” Yeji continued.

”You have gone through a lot, I’m glad your friendship has lasted this long.” Yeji and Ryujin simply grinned at the princess in response.

“Well, it definitely wasn’t easy. Thankfully, a few years back, I managed to have phone developed for the two of us. It made communicating a whole lot easier.” Ryujin said.

”Phone?” Jisu asked, in confusion. The wonders of the human world never ceased to amaze her. They just continued to invent some crazy machinery that works an unknown purpose.

”It’s that little thing in Yeji’s hand over there. I have one too. A phone is a little electronic device that sends and receives a message in the form of a signal. If it were to be compared to something, I guess you could say it’s like how whales and dolphins communicate with their species. It was pretty hard to make it waterproof and resistant enough for the pressure underwater though.” Ryujin answered.

Jisu nodded in understanding. The analogy Ryujin used was easier for her to understand. While she was quite intelligent among her peers, there were only a few of their kind that could understand even the slightest bit of the technology that the humans make.

“So, you aren’t Yeji’s lover?” Jisu asked innocently. Ryujin burst out laughing at her question and slapped Yeji’s shoulder. Yeji herself simply sighed in defeat.

”For the last time, princess. We definitely are not dating. I wouldn’t fall in love with anyone like Shin Ryujin.” Yeji said in disgust. She couldn’t imagine being together with Ryujin in that way. It would be like dating a sibling!

”Same goes for me, Jisu. Besides this one here is way too serious about her job, and sees love as some sort of distraction. I don’t even know how you got to that conclusion.” Ryujin answered.

Jisu nodded in understanding and unconsciously let out a sigh of relief. For some unknown reason, she was happy to know that the pair weren’t involved romantically. 

”Well, I guess it’s time for a little swim. What do you say, Ryujin?” Yeji asked her best friend. The blue-haired girl gave a thumbs-up as Jisu watched them. At Yeji’s question, she couldn’t help but ask.

”Swim? Ryujin’s human though, no offense, but would she be able to keep up?” Jisu asked, looking at her protector. Ryujin let out a laugh at her honest question, while Yeji tried to hold her own back.

”Oh, don’t worry Jisu. Based on your question, I don’t think Yeji told you. How else do you think she’s learned to swim and fight that well, if it weren’t for me?” Jisu turned to the blue-haired girl, but froze at what she saw. Ryujin’s shirt was now off, leaving her in a bra and her abdomen exposed for all to see.

‘Oh gods. She’s even more built than Yeji! How is she this hot?’ Jisu thought, trying to stop her jaw from falling slack. The princess immediately composed herself, but Ryujin noticed her previous reaction and chuckled.

”Yeji learned from you?” Jisu asked.

“As much as I hate to admit it, there was a lot to learn from the human’s way of swimming, princess.” Yeji replied.

“Wow.”

Ignoring Jisuks reaction, Ryujin began stretching before entering the water, while Yeji simply swam off further to the ocean. She noticed that her protector left her precious trident behind, beside the clothing Ryujin has previously discarded. Jisu turned back to the sea just in time for Ryujin to finish her stretching.

”I’ll show you just how well this human can swim, princess.” Ryujin declared before swimming off. Jisu was surprised at the pace Ryujin was going, and wondered if she was some sort of hybrid of a human and mermaid. There was no way that a normal human could swim that way. However, Jisu also noticed that there indeed some similarities with Ryujin’s form with Yeji’s and her own.

While she’s not the best swimmer out there, she could tell just how well Ryujin’s body moved in the water.

As the only person left relatively close to the shore, Jisu hurriedly swam in their direction. She caught up to Ryujin and slowed down to her pace. The two were swimming side by side as they went towards Yeji, who was calling out to them to catch up. The mermaid princess and the human heiress smiled at each other, before submerging even further into the open seas.

’You’re definitely more special than you seem to be Shin Ryujin. I’m definitely going to beg Yeji to bring me here more often just to see you.’ The princess thought to herself.

i might make a continuation someday, but i’m not really sure. this is barely edited too, so i’m sorry about the mistakes.