2girls aki-fuyu alcohol bad_id bad_pixiv_id black_hair black_legwear blush bottle brown_hair cake christmas christmas_tree cup dress drinking_glass feeding food gift hand_on_thigh hat long_hair multiple_girls onjouji_toki open_mouth red_eyes sack saki saki_achiga-hen santa_costume santa_hat shimizudani_ryuuka short_hair sitting thighhighs wariza white_legwear wine wine_glass