Suzu's Stepbrother

Male PE teacher who checks on Asahina, is pulled into kissing and explicit sex with her in the student council room despite protests, then collapses exhausted after creampie.

Long light-haired schoolgirl who has explicit sex with Haruki, demands he say he loves her, reciprocates, asks to be creampied, then walks to school hand-in-hand with him.

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.

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