She walks in the hallway like an average student. Carrying a black and white backpack with cute laces around it. Wearing a neat and complete uniform with her hair in pigtails. That girl is Lee Chaerin aka Rillakuma addict. A cute-nerd student, a rillakuma addict, an ice-cream lover, and especially, an oblivious person. You see, the guy that keeps walking back and forth wearing a Rillakuma outfit. That is Kwon Jiyong aka Chaerin Lee adict. A guy that every woman, fangirls and desire but his heart is being hold by that cute-nerd student. The problem is that, he can't really let go of his ego and pride. But seeing a lot of guys talking about her, he gathered all of his courage to confess to her. Hmmm... Let's see where this Rillakuma Confession will go...