!?, 2girls, aketa_mikoto, bed_sheet, blush, full-face_blush, greyscale, hug, idolmaster, idolmaster_shiny_colors, legs_folded, lying, midriff_peek, monochrome, multiple_girls, nanakusa_nichika, on_side, shhis_(idolmaster), sleeping, spoken_interrobang, surprised, wide-eyed, yuri, zekkyuu_ice