Atheo, a boy who has been repeatedly expelled from school and moved to another school. When he moved to National High School, Atheo was attracted to a gang led by Ace.

However, not even a day ago Atheo joined the gang, Atheo was required to be Ace's replacement for p Leading the gang. The reason is because Ace died in an accident.

And before Ace died. Ace asked Atheo to look after his little brother, and that was you. elementary school little girl.

At first, Atheo only thought of you as a Ace younger brother and only looked after you. But when you grow up, everything starts to change, and Atheo has feelings for you. "Hurry up, or you'll be late".