1girl, afrobluescombo, black_sailor_collar, black_skirt, buttons, closed_mouth, clothes_lift, double-breasted, from_above, idolmaster, idolmaster_million_live!, idolmaster_million_live!_theater_days, lifted_by_self, light_blush, looking_at_viewer, lying, makabe_mizuki, navel, neck_ribbon, on_back, on_bed, pleated_skirt, purple_hair, red_ribbon, ribbon, sailor_collar, sailor_shirt, school_uniform, serafuku, shirt, shirt_lift, short_hair, skirt, solo, stomach, upturned_eyes, yellow_eyes