Sandeul and Nicole are now in university. They managed to get into the same university despite they aren't taking the same course.
  As they're in new environment, of course they made new friends, and their new friends are Baro and Jinyoung. Actually they're from the same high school, is just that they're not so close during high school time. The five of them always go together no matter what happens, they're real best friends.
  It's winter time, the five of them are together as usual enjoying their winter break.
  "Christmas, hmm.... what should we do on Christmas? Any plans?" Jinyoung is always the first one to plan the events.
  "Movies! You know, it's quite a long time we haven't been to the cinema, and I miss the popcorn so much," Baro, who had always wanted to go for a movie.
  "I guess that you miss Clara more than the popcorn!" Jinyoung teased Baro while thinking of the first time they went to the cinema and met Clara, a part-time worker in the cinema and Baro totally fell for this girl.
  "Awhh! Stop it! It's already a past tense, ok? Clara rejected me, but I do miss her," hearing that sentence, Baro tried to deny it but he can't, inside his heart he really hopes that Clara will accept him one day.
  "Nic, what about you? You don't act quiet usually, any problem?" leaving both of the boys arguing, Sandeul went near Nicole who is acting differently from usual.
  "Nah, I'm fine. It's just that I haven't finish my assignment. I felt left out as you guys had finished everything and are all ready to relax. "
  "That's it? I thought what big problems. Assignments are as easy as ABC, why are you so worried?" he said it as he is good in everything, none of the task in his university year bothered him.
  "Ish! You don't understand, taking neurology is not that easy ok? There's lots of things to memorize and so on. You guys will definitely don't understand, " Nicole spit out all her words angrily and walked out of their apartment unit with a big bang on the door.
  "Ehem, Mr Sandeul, what's the matter again? You're now in big trouble, I guess she's really mad with you, she had never been this way before," Jinyoung stopped arguing with Jinyoung after hearing the bang on the door by Nicole and interrogated Sandeul with a shocked expression, as well as Baro.
  "I don't know, but nowadays she is always like this, she ignored me and showed tantrum at me most of the time, it's just that you two didn't notice it."
  "That must be your fault then, I think she is jealous because you spent most of your time with your GIRL classmates instead of her," Baro emphasized the word girl and laughed with Jinyoung.
  "I don't think she is that kind of girl, she is different from others," Sandeul shook his head.
  "You'll never know what a girl thinks, dude!" Baro laughed and continued to talk with Jinyoung.
  "It can't be, right? Nic is not a girl like this, but why do I feel like our relationship is in danger? Something's not right, or is it I'm thinking too much?" Sandeul mumbled to himself after listening to what Baro said.
  Since they were in the university, they seldom go dating because they're always busy with their own work. They often quarrel because of some small matter and it's getting worse and worst. Sandeul realized that their relationship is going to be in danger but he doesn't know what to do. He's afraid that he might lose Nicole. 
  In Nicole's apartment unit which is just a storey below the other three's, she was hugging the toy bear that Sandeul gave her and grumbling to it :" Sandeul you fool! Why can't you just say something nice? It's so different with how you treat your classmates, is it because of I'm your girlfriend and you treat me like this? Arghh!! Why would I complain about him? He did nothing wrong, but why am I so angry, I shouldn't have done that, he must be mad at me now, probably he wouldn't talk to me for days. Argh! Why am I so stupid and so emotional?! Very stupid of me!" Nicole was so regret with what she had done just now, she just hoped that everything will be fine by then.
  As days pass by, as what Nicole had expected, Sandeul didn't talk to her for like 5 days. She was sad and don't know what to do. Without noticing her footsteps, she tripped a stone and fell onto the ground and her hands start to bleed. She can't hold her tears anymore and at this moment, a hand appeared to her, she was surprised:"Sandeul?" but when she lift her head up, it wasn't Sandeul but Jinyoung.
  "Are you okay?" Jinyoung helped her up and asked.
  "Thanks for helping, I'm okay, bye," being afraid of letting Jinyoung see herself crying, Nicole said in a rush and ran away as fast as she can.
  "Nic!" Jinyoung shouted at her, "I think we need to talk, I don't think you're doing good," he walked towards her and gave her a piece of tissue.
  Nicole was stun:"How did you know that I'm crying?" "Oh, you were crying? I just wanted to give you the tissue to clean your injuries," Jinyoung just realized that.
  "Oops, looks like I'm the one who is thinking too much," Nicole felt so embarrassed.
  "Actually what happened to you two? I noticed that you two weren't together this few days," he asked Nicole out of his curiosity.
  "I don't know but... I think he's angry with me about that day's incident," she stammered.
  "You mean Sandeul is angry with you because of that? It will never happen! He is not that petty," he laughed at that reason.
  "I know, but maybe he had changed, who knows?" she sighed.
  "Don't think too much, it's very late now, go back home and sleep well, bye!" with that, he walked away and turned back in sudden, "I'll better send you back, it's dangerous for a girl to walk home alone at this time. Besides, we stay in the same building." Nicole nodded her head and smiled.
  "Sometimes, I feel like you are more like my boyfriend than Sandeul. It was quite a long time since he sent me home even though I'm just staying a storey below you guys," she suddenly spoke.
  Jinyoung gave her a funny laugh and thought inside his mind:"I wish that is a truth." "Hey, what are you thinking? I've reached my unit," seeing that Jinyoung is thinking far away, she nudged him.
  "Oh, bye, have a sweet dream!" he gigled. "Same to you, don't get kidnapped on your way back!" she  laughed.
  When Nicole was about to sleep, her phone rang, there was a message from Sandeul:"Are you asleep? If not, will you come to the field of our apartment? I'm waiting for you." Nicole almost shout when she received that message and quickly rushed out after changing her clothes. But after a moment, she was afraid that Sandeul asked her out because of wanted to break up with her and walked slower.
  When Nicole approached the field, she saw Sandeul standing there with a guitar and the field is decorated with candles that formed a heart shape. Just as Nicole walked near Sandeul, he started to sing a song:

 

Don’t worry, I’ve already fallen for you