Koharu Hatsuno is a 1st year male student at Teitoa High School. He is Sakinas childhood friend and love interest. Koharu is also her classmate and is an easygoing person who usually ends up needing her help with schoolwork.
The narrative revolves around a young woman who lacks life experiences. following advice from a friend that she is falling behind, sakina begins to have vivid fantasies about her childhood sweetheart ...