1girl, blue_hair, blue_one-piece_swimsuit, blush, closed_mouth, emurin, expressionless, flat_chest, full_body, hinanawi_tenshi, legs_up, loli, long_hair, looking_at_viewer, lying, name_tag, on_back, one-piece_swimsuit, red_eyes, school_swimsuit, sidelocks, solo, swimsuit, touhou, very_long_hair