idolmaster, idolmaster (classic)
amami haruka, kikuchi makoto, kisaragi chihaya, shijou takane
uozumi seiji
4girls, :o, bathtub, bikini, blush, breast envy, breasts, cleavage, empty eyes, grey hair, large breasts, long hair, multiple girls, navel, o-ring, o-ring top, open mouth, partially submerged, red bikini, red eyes, same-sex bathing, shared bathing, strap gap, swimsuit, topless, transparent bathtub, very long hair, water
commentary request, translated