Jinko, a 16 year old boy, is ready to take his girlfriend on a date for their 6-month anniversary, but she suddenly breaks up with him out of nowhere, saying the reason is that he has no personality. Jinko realizes that she's right and decides to try to better himself.
One day he sees a slightly familiar face while looking for a new hobby and wants to get to know her better, but she's always cold to him, never giving him the time of day. Eventually, she stops showing up, and he assumes that it's over.
But surprisingly, he meets her again while she's being robbed on the street. By sheer luck, he manages to save her and help her escape, but in the process something unexpected and shocking happens. This girl isn't really who she seems to be.