[KANIPANKO (Kanipan Munshamushi)] Kyokon Sugiru Oshiego ni Choukyou Sarete Ketsuman Dorei ni Narimashita

A few months into his transfer, the muscular swim coach Kaoru returns to his classroom to find his fountain pen, only to discover his meek student Sensei masturbating. What begins as a humiliating catch quickly spirals into an intense, obsessive affair as the frustrated virgin teacher becomes utterly consumed by his athletic student's commanding, well-endowed physique, eventually surrendering himself as the obedient, dripping "slave bitch" in their escalating encounters.