shihouin yuu, shiratori hatsune, shiratori mikoto, shiratori takeru, yagami yayoi, in'youchuu, in'youchuu etsu, game asset, visual novel cg, 10s, 5girls, age difference, black hair, blue eyes, blush, breasts, brown eyes, brown hair, censored, covered erect nipples, earrings, fence, green eyes, hair ornament, hairclip, jewelry, long hair, mature female, moon, mother and child, mother and daughter, multiple girls, naked towel, navel, night, onsen, orange hair, parent and child, pink hair, ponytail, short hair, siblings, sisters, sky, smile, star (symbol), towel, water