[Tachikawa Ritsuka] AV Nai GAME Zettai ni ￮￮ Shite wa Ikemasen! (1) [Full Color] [biribiri]

One careless round of a forbidden game and the hero wakes up in a girl's body—soft, curvy, and embarrassingly responsive—with a single ironclad rule: absolutely no climaxing. Bound to a chair while a teasing group and a long-tongued frog creature push every button, he barely survives round one before a late text drops the real stakes: cum too much and the transformation becomes permanent. Now a cheerful bespectacled visitor shows up with a thin thermometer, thicker intentions, and a bed, leaving one desperate question—how long can he hold out before the body wins?