1girl, ball, belly_grab, black_panties, black_sports_bra, braid, breasts, brown_eyes, calendar_(object), demon_girl, demon_tail, demon_wings, embarrassed, exercise_ball, horns, long_hair, medium_breasts, navel, original, panties, red_hair, romi_dajung, solo, sports_bra, sports_panties, tail, twin_braids, underwear, very_long_hair, wings