What will happen when a girl got stuck in a room with her old crush from high school? The one that she confessed but was rejected. Will her feeling still linger for the guy or will it not?

CHARACTERS:

You ( Choi ____ )

- a junior in college majoring in Pure Math

- had or still have a crush on Zico in high school

- had multiple personality

- bestfriend with her big bro, Choi Seunghyeon or what people usually call him T.O.P

- don't really give a damn about other people except for her closed one

Zico ( Woo Jiho)

- your crush in high school

- now pursuing a career in the entertainment industry as the producer Zico

- secretly has a crush on you too but had to keep it hidden because he wants to pursue his dream first

- a good friend with your brother 

T.O.P ( Choi Seunghyeon)

- your one and only brother

- works as a music producer and occasionally rap in the underground 

- protective of you and he can literally kill anyone who messes up with you

- really supportive of whatever you do

Park Bom

- TOP's fiance

- like a big sister to you

- have known you and your brother since high school years

- now works at a famous fashion house as a senior designer

- like TOP, very protective of you and takes good care of you and your brother like a mother would do.