University Part-timer

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

Long light-haired married woman who aggressively rides Atsuki bareback, allows creampie, then leaves before morning and chats online as siwori.

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

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.