Yui, the stern wind纪委員, and Rina, her bashful assistant, find themselves in over their heads when they stumble upon a secret orgy in the school's unused wing. The sight of their peers entwined in carnal ecstasy awakens a hunger within them, driving them to cast aside their inhibitions and join the debauchery. As the room fills with moans and the scent of sex, Yui and Rina explore each other's bodies, their fingers and tongues dancing in a symphony of forbidden lust, their once-pristine uniforms now a crumpled reminder of the innocence they've left behind.