Masaichi Mazono and Toiro Kurumi have been friends since they were kids. Masaichi, an otaku boy, and Toiro, the most beautiful girl in school, were inseparable. Toiro was always hanging out in Masaichi's room and they were like family. But one day, Toiro, exhausted from her romantic struggles, asks Masaichi to pretend to be her boyfriend. They think it will be easy since they've known each other for so long, but they soon realize that their friendship is too strong to fake a romantic relationship.
"H-hold hands? No way, it's too embarrassing."
Their childhood friendship takes an unexpected turn as they navigate their new adventure as "lovers".
