kouda tomohiro, karin (petit roid 3), kirara (petit roid 3), mitsuki (petit roid 3), petit roid 3, 3girls, aged up, ahoge, android, arm around waist, armpits, bikini, blonde hair, blue eyes, blue hair, breasts, clenched teeth, covered erect nipples, glasses, hair ornament, hug, large breasts, long hair, multiple girls, pink eyes, pink hair, short hair, siblings, sideboob, sisters, smile, striped bikini, striped clothes, swimsuit, teeth, underboob, yellow eyes