Haruki

Male university night part-timer who argues with manager Kurokawa at the register about their hotel encounter while a customer waits.

Long black hair, large breasts, wearing school uniform, frequently appears in sexual scenes

Short-black-haired stepbrother with glasses. Has intense sex with Suzu, creampies her, then leaves for school in uniform the next morning.

Long-black-haired stepsister with a choker. In these pages she continues intense nude sex with her stepbrother, receives a creampie, then returns to daily life in school uniform the next day.

Senior with short light hair and school uniform who greets Haruka in the final pages

Convenience-store manager who, on the shop floor, angrily rebukes her night part-timer over their prior hotel sex and who started the affair first.