1girl, ahoge, arm_support, bow, bowtie, buttons, chestnut_mouth, collarbone, dress, expressionless, eyelashes, flat_chest, greyscale, groin, hair_bow, hosizora_mikoto, idolmaster, idolmaster_cinderella_girls, legs, light_blush, long_sleeves, looking_at_viewer, low_twintails, messy_hair, monochrome, on_bed, pillow, sailor_collar, short_hair, sitting, socks, solo, steam, thigh_gap, thighs, twintails, yusa_kozue