Welcome to porn-performer training, where instructor Rinka Mizuhara teaches professional attitude and female anatomy. Rookie Mochizuki argues technique matters most, so she asks him to demonstrate breast fondling and finds him surprisingly skilled. Nakayama joins, then requests oral on her. Treating it as part of class, Rinka allows it and moans with pleasure. Both men ask to penetrate her and claim equal confidence, so she agrees if they satisfy her properly. Their thrusting proves excellent too, and she finally loses control and orders them to pour huge loads inside.