[Semakute Kurai (Kyouan)] Seiseki Yuushuu na Iinchou ga Teihen Gyaru ni Sakaurami Sarerurashii yo [Full Color]

Momoe, the honor-student chairman whose flawless grades make her the school's golden girl, has landed squarely under the thumb of Yuki, a resentful gyaru determined to drag her from the top of the social ladder into what she calls a bottomless swamp. Yuki's cruel 'homework' keeps the busty chairman filthy and desperate—banned from washing herself, forced to soak through her panties, then made to present her darkened nipples and musky, stained body for inspection while blushing out her thanks. With every humiliating check-up ending in Momoe's grateful, flushed smile, the line between torment and pleasure blurs into a full-color descent that leaves this elite student begging for her next assignment.