Kodaira

Male senior with hair tied back. Bursts in as a reliable guide for lost juniors, claims oral duty, and instructs then penetrates Tamura.

Female junior with a ponytail. Central participant who first receives oral, manual, and penetrative training in the practical class.

Male senior called out during the practical. A partner climaxes while crying his name in an intense penetration scene.

Female student with long hair. Asks to be treated roughly, then receives intense penetration and climaxes.

Male senior with wild dark hair. Arrives with his partner, hypes the juniors, and joins the group sex.