Chou Tzuyu is Chaeyoung's childhood best friend and is still her closest friend. Considering the fact that they are at the same age and their brain wavelength travels on the same point of conclusion, they call themselves soulmates. And now that Tzuyu decided to attend in the school of the Yoo sisters, Mina's never this determined to show who owns Chaeyoung and who really is her soulmate.

•

Everywhere Chaeyoung goes, Mina's there on her arm clinging like a koala. They will only part ways when attending their respective classes.

"Wow. Mina sure is clingy." Tzuyu said after Chaeng arrived on her seat.

"Not really this clingy. She wasn't like this before, actually." Chaeng replied scratching the back of her head.

Tzuyu just nodded and they chatted for a while before their teacher arrived.

In the middle of the class, Chaeyoung thought she was being delusional when she, whether it was an apparition or not, saw Mina peeking through the glass of the door. At first it was only her eyes and forehead but her whole face, neck and chest were now in view. She shook her head and blinked a few times before looking again, but she was still there and this time she gestured a finger heart sign and grinned. Chaeyoung smiled awkwardly and also waved awkwardly. This was really weird for her, the girlfriend that she usually have was well composed, elegant, unbelievably feminine, and has finesse but now her girlfriend was shooting finger hearts at her like she has gone bonkers. Chaeng signaled the finger heart maniac to go because they might get caught but Mina wasn't that easy to shoo, she did neomuhae neomuhae and TT sign to Chaeyoung. The latter facepalmed at her lover's unfamiliar attitude today and when she opened her eyes, Mina was dancing Cheer Up and freaking dabbed to end the dance.
That was it, the dab mentally stabbed Chaeyoung. When she turned to stand, she saw that some of her classmates were looking at the door with fascinated expressions. Tzuyu even clapped her hands to congratulate her for a very talented girlfriend. She sighed in disbelief and went in front to excuse herself out. Lucky that the teacher was taking a short nap waiting for them to finish their exercise sheets because if he was not, they might've gotten detention.

"What in Zeus' name are you doing dancing here of all places, Myoui?" Chaeng immediately said as she slowly crept out of the room.

Mina pouted and put her hands in her pants' pockets, rocking back and forth,
"What's wrong with that? I just missed you that's all."

Chaeyoung sighed and then looked around before gently planting a kiss on her suddenly goofy girlfriend. She told Mina to go back to her class and she proceeded to the washroom after. But to her surprise, Mina followed her there.

"You're being quite the stalker, aren't you?" Chaeyoung smirked at her newly branded stalker who was now leaning on the sink counter.

Mina just tilted her head and raised her eyebrows slowly forming a smug smile at her girlfriend. Chaeyoung just chuckled moving towards the sink to wash her hands.

"You're being weird lately, Minari." Chaeng said while wiping her hands dry.

"Really?" Mina inched forward, making Chaeyoung take a step backwards. 

"Yeah."

"I'm not. I'm just being a sweet girlfriend."

"Nope, definitely sure you're being a creepy stalker."

"I'm not."

This time, Mina's gaze was very piercing that Chaeng felt guilty about something she doesn't even know. And before she could find any excuse to squirm away from Mina's steady stare at her, she felt the door flat on her back and a familiar click sound followed. Mina locked the washroom door. Chaeyoung couldn't contain the pounding of her heart, this was very... exhilarating. Mina placed her hands beside Chaeng's head and sent hot breaths on her ear. She started nibbling her earlobe, making Chaeyoung shiver. Mina stared at her lovingly before crashing her lips onto hers.

The sweet kiss turned into a passionate one when Mina started to her girlfriend's lower lip, wanting to deepen the kiss. Chaeyoung's arms found it's way on Mina's nape, pulling her in closer, while Mina's were around the younger's waist, tracing her curves.

Mina's lips left Chaeng's and started to trail sinful kisses on her jawline to her neck, occasionally biting and the soft and smooth skin of the latter. When she found her most sensitive spot, she began to mark her territory. Chaeyoung had to cover , not wanting a moan to escape since they were making out on the door. She can hear some students' voices as it was almost dismissal time.

It was hard suppressing the pleasure that was aching to come out from , Mina was making love marks above her collarbone, on her shoulders, and on her neck. It was already marked when she realized that she was wearing a white, long sleeved, crop top that revealed her collarbones. She immediately opened her eyes out of panic. She was about to gently push Mina away but she backed herself out, she smirked proudly at the marks she made like as if it was the best accessory Chaeyoung had on her body.

Chaeyoung right away went to the mirror when Mina removed her hands on her,

"Oh my God, Myoui Mina. You left marks! How am I going to cover these?!"

"No need to cover, it looks good on you." Mina huskily said.

"I still have classes. They're gonna think I skipped just to make out." Chaeyoung said worriedly while she was still looking at the mirror, trying to find ways to cover the hickeys, "Why'd you have to leave so many of it."

"I had to, baby. It's only normal to mark what's yours in order for some uninvited beings to back the hell out." Mina said with such authority in her voice that Chaeng, again, felt unknowingly guilty about something.

They exited the washroom with Chaeyoung tugging the collar of her shirt upwards to hopefully cover the love mark that was on her neck. She glances around looking if somebody reacts at her.

"If you keep on doing that, it'll be more obvious and it's not like you didn't enjoy it." Mina smirked.

Chaeyoung blushed when she remembered their hot make out. This was all new to her, Mina being that aggressive and dominantly taking the lead. 

Mina walked the younger one back to her classroom and before bidding goodbye, she left a gentle reminder,

"Chaeng, remember that you're mine and I don't share."

"Well, you did make it clear with physical evidence. I don't think I can argue more."

A/N: :3 As promised. Tada! Kekeke~
Did you like it? ;) Tzuyu will still be on the next chapter/s.
Again, and I'll never get tired of saying, THANK YOU BEAUTIFUL CREATURES! xx

(Clue for next chapter: Where will this jealousy lead them to?)