1girl, amamitsu9, armpits, arms_behind_head, arms_up, blush, brown_background, closed_eyes, collarbone, eyelashes, fire_emblem, fire_emblem:_three_houses, flat_chest, gradient_background, hair_between_eyes, hot, lysithea_von_ordelia, no_pants, open_mouth, panties, sidelocks, signature, simple_background, solo, sweat, tank_top, underwear, upper_body, white_hair, white_panties