01angelegg bikini breasts brown_eyes brown_hair expressionless hair_half_undone long_hair looking_to_the_side low_twintails medium_breasts navel osomatsu-san osomatsu_(series) pink_bikini plaid_clothes plaid_skirt ribbon seiza short_twintails sitting skirt string_lights swimsuit twintails undone_skirt yellow_ribbon yowai_totoko