1girl, :o, ahoge, ass, blush, breasts, collarbone, curtains, eyebrows, eyebrows_visible_through_hair, hair_between_eyes, hand_on_own_chest, indoors, knee_up, long_hair, looking_at_viewer, lying, nipples, nude, on_back, open_mouth, pillow, purple_eyes, purple_hair, shiny, shiny_skin, small_breasts, solo, tsurime, window