2girls, blue_dress, blush, breasts, brown_hair, champagne_flute, collarbone, cup, dress, drinking_glass, idolmaster, idolmaster_cinderella_girls, kaiso_(kaisooekaki), lace-trimmed_dress, lace_trim, large_breasts, long_hair, looking_at_viewer, matsumoto_sarina, mizuki_seira, multiple_girls, off-shoulder_dress, off_shoulder, parted_bangs, red_dress, short_hair, single_bare_shoulder, smile, straight_hair, very_long_hair