Yuusuke Katou spends his final year at Seiryu High School, an all-boys boarding institution, as part of a tight-knit group of five friends. He embodies athleticism, frequently seen engaged in sports, and possesses a hearty appetite that solidifies his "big eater" reputation.

His story unfolds as the school prepares for its significant 500th-anniversary festival. Drama club president Mizuho Kusanagi implements an unconventional plan: Yuusuke and his friends must perform in a theatrical adaptation of "Little Women," requiring them to cross-dress in female attire. Kusanagi achieves this by outwitting the group, leaving them no choice but to comply.

Initially resistant and participating with reluctance, Yuusuke and his friends gradually experience personal growth through the demanding rehearsals and the performance itself. This shared challenge of confronting an unexpected situation becomes a catalyst for unforeseen self-development, fostering maturity within the group.