mercedes von martritz, mercedes von martritz (summer), fire emblem, fire emblem: three houses, fire emblem heroes, nintendo, commentary request, highres, 1girl, :d, bare arms, bare shoulders, bikini, black bow, blonde hair, blue eyes, bow, breasts, brown bikini, cleavage, floral background, from side, hair bow, hair over shoulder, large breasts, long hair, navel, official alternate costume, ootuk, open mouth, simple background, smile, solo, stomach, swimsuit, tongue, upper body