Atsuki

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

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

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.

Male character with short black hair and school uniform who engages in sexual intercourse with Haruka

Shoulder-length light hair, large breasts, casual home clothes; sees Daiichi and Chloe together on the sofa and remarks they get along, then dryly comments on them in bed.

Short light-haired senior who helps Haruka after her fall, is called a gorilla by her, repeatedly turns her down, then stops her corridor seduction and eventually kisses her.