1girl, o, arms_behind_head, arms_up, black_bra, black_panties, blue_background, blue_eyes, blush, bocchi_the_rock!, box_wonderland, bra, breasts, cube_hair_ornament, gotoh_hitori, hair_ornament, large_breasts, long_hair, navel, open_mouth, panties, pink_hair, simple_background, solo, underwear