Tomo Aizawa, a tomboy girl, confesses her love to her childhood friend Kubota Junichirō. However, he mistakes her confession as a casual assurance of friendship between boys, disgruntling her. Later on, Tomo asks her best friend Misuzu Gundo for advice. However, Misuzu says she has rightly portrayed herself as a boy because of her lack of femininity.

After Tomo is groped by an old man on the bus, Junichiro suggests that she stop wearing skirts. Then Tomo meets Carol, an English girl that all the boys in school admire.