1girl, d, ahoge, armpits, bed_sheet, black_horns, black_thighhighs, black_wings, blue_archive, cellphone, demon_girl, demon_horns, demon_wings, forehead, halo, hand_on_own_head, hina_(blue_archive), holding, holding_phone, horns, knee_up, long_hair, looking_at_viewer, low_wings, lying, mochizuki_hull, multiple_horns, on_back, parted_bangs, phone, purple_horns, side_slit, sidelocks, sleeveless, smartphone, smile, solo, striped_horns, thighhighs, wings, zettai_ryouiki