1girl, bikini, black_bikini, black_sleeves, breasts, cosplay, fangs, green_eyes, grey_background, horns, kitagawa_marin, large_breasts, liaowen, long_hair, long_sleeves, looking_at_viewer, navel, open_mouth, pointy_ears, red_hair, rizu-kyun, solo, sono_bisque_doll_wa_koi_wo_suru, stomach, swimsuit, teeth, underboob