Sosuke, Satoru, and Haruka are ronin students. Sosuke is tormented by the crime of outing his best friend Satoru when he tells the students at his prep school that Satoru is gay. Satoru is bullied because of it, and with the help of Haruka, who used to bully him in junior high school, he is forced to face his past as a perpetrator who bullied Haruka. In a world where there are no boundaries of victim and perpetrator, the three 19-year-olds hurt each other, but try to become strong and kind people.

Based on the director's own school days, this film was made with love for his classmate Satoru, who is bullied after people spread the word that he is gay, and Sosuke, who is not good at talking to people and has no friends. This is a coming-of-age drama that depicts the emotional exchange between two lonely high school boys who end up in the same hotel room during a school trip.