Sorry (2002)

Plot

Twelve-year-old Sei is navigating the turbulent waters of adolescence, grappling with newfound sexual awareness that often strikes at the most inconvenient moments. As he deals with unexpected erections at school, Sei confides in his friends, Kinta and Nyanko. Their discussions are frequently interrupted by their rivalry for the attention of their crush, Yumi. Amidst this chaotic blend of pubescent challenges and budding romance, Sei struggles to make sense of his changing body and emotions, leaving him in a constant state of confusion and curiosity.