Usui Sachi

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.

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.

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

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 messy black hair, glasses; school/casual clothes then partially clothed under Chloe during penetrative sex; shy, aroused, climaxes inside her and answers yes when she asks if he loves her.