Character introduction, Mr. C, a big boy with autism, likes Mr. O.
Jun O is a big boy with a warm and sunny personality. He likes girl U, but in the end he found that he fell in love with Jun C.
Mr. A, the best friend of Mr. O, the matchmaker between Mr. O and Mr. C,
Girl U likes Mr. O. Mr. O seems to have some thoughts about Girl U. Girl U is very special. It will turn black later
S girl, U girl's friend, is also a rotten girl. She actually helps O Jun and C Jun to connect with each other secretly. That's probably the kind of persona he is.