Make a girlfriend! With that in mind, Makoto entered high school. Makoto falls in love with the beautiful girl sitting next to her, Morigata-san, but all she's interested in is the handsome and intelligent Nanagi. Makoto, who has a burning rivalry with him, challenges him to a match but is defeated every time. However, he recognizes my honest and honest personality, and a platonic romance begins with Morikata! ...And yet, out of the blue, Nanagi confessed to her? Forbidden triangular comedy between first girlfriend and first boyfriend (?)