1girl 2018 bangs bare_shoulders bell bikini bottle breasts brown_hair christmas christmas_tree commentary cup detached_collar detached_sleeves drinking_glass dutch_angle fur_trim heterochromia highres idolmaster idolmaster_cinderella_girls indoors looking_at_viewer md5_mismatch medium_breasts merry_christmas mole mole_under_eye night nonoririn open_mouth red_bikini red_thighhighs resolution_mismatch santa_bikini short_hair short_sleeves sitting snowing solo source_smaller swimsuit takagaki_kaede thighhighs untied untied_bikini window