koizumi amane, tsukishima kei, tsukishima kei (chikan senyou sharyou), chikan senyou sharyou, game cg, 1girl, angry, aqua hair, ass, blue hair, blush, chikan, clothes lift, from behind, grabbing another's ass, green eyes, groping, lipstick, looking back, makeup, miniskirt, molestation, panties, panty pull, plaid clothes, plaid skirt, pleated skirt, public indecency, shirt, short hair, skirt, skirt lift, solo focus, t-shirt, train, train interior, underwear, white panties