Sekaiichi Hatsukoi OVA

Episode 0: Ritsu and Takano used to date back in high school, but broke up due to a misunderstanding. This is that story. Alt. title: Sekaiichi Hatsukoi Episode 0, Sekai-ichi Hatsukoi: Onodera Ritsu no Baai, Sekaiichi Hatsukoi Episode 12.5, Sekaiich