1girl, alternate_costume, ass, beach, blue_one-piece_swimsuit, breasts, fire_emblem, fire_emblem:_the_blazing_blade, from_behind, green_eyes, heterochromia, idunn_(fire_emblem), long_hair, looking_at_viewer, looking_back, median_furrow, medium_breasts, one-piece_swimsuit, outdoors, pointy_ears, purple_hair, red_eyes, sand, school_swimsuit, solo, swimsuit, tavi_(hosheezus), thigh_gap, thighs, water