Starring Jung Jae-young and Han Ji-min, it is the feature directorial debut of Seong Si-heub.

Having obsessive–compulsive personality disorder, he wakes up, crosses the road, visits the convenience store and goes to bed at the same time every day.

Jung-seok develops a crush for a local convenience store's cashier who demonstrates a similar attention to order and cleanliness.

When he finally works up the courage to tell her his feelings, he bumps into So-jung instead, a messy musician and free spirit whose life is lived spontaneously, adventurously and impulsively.

So now Jung-seok must break his routine and place himself outside of his comfort zone, as So-jung asks him to enter a singing audition program together with her.