Joshikousei no Koshitsuki explores the insatiable lust of several high school girls who find themselves in intensely lewd situations. The series focuses on the raw, carnal pleasure derived from their powerful and rhythmic hip movements ('koshitsuki') as they are relentlessly pounded by older men. Each episode showcases a different girl, from the innocent-looking class president to a shy bookworm, all revealing their hidden slutty desires. Viewers are treated to a visceral display of deep, cervix-grinding penetration, with close-ups on their slick, dripping cunts being stretched wide. The girls are taken in every conceivable position—doggy-style, cowgirl, piledriver—their asses jiggling and hips swaying hypnotically as they get pumped full of cum. The climax of each encounter is a messy, hot creampie, with thick loads flooding their fertile wombs and leaking out, a testament to their complete sexual submission and pleasure.