Haru is the handsome upperclassman admired by all the female students. When she leaves the archery club, Suzuki decides to gift her with a tube of lipstick, but she’s unable to when Haru leaves with her girlfriend, the beautiful Towada.

Dejected, Suzuki later runs into Towada, and decides to give her the lipstick instead. That one gesture opens up an unexpected friendship that blooms the color of passionate red lips...