3girls, apron, blush, bra, breasts, cleavage, comic, cup, dress, female_pervert, glasses, imagining, imminent_kiss, koyuki_(kotatsu358), long_hair, maid, maid_apron, monochrome, multiple_girls, open_mouth, original, pervert, puffy_sleeves, short_hair, short_twintails, smile, teacup, twintails, underwear, waist_apron, yuri