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.

Tomo visits each of her best friends' houses. She meets Carol's mom, gets some help studying for midterms at Misuzu's, and... stays overnight at Junichiro's house?!