1girl, adapted_costume, berg-yb, bikini, black_bikini, blue_eyes, blue_hair, breasts, byleth_(female)_(fire_emblem), byleth_(female)_(summer)_(fire_emblem), byleth_(fire_emblem), cleavage, closed_mouth, fire_emblem, fire_emblem:_three_houses, fire_emblem_heroes, large_breasts, medium_hair, navel, official_alternate_costume, smile, swimsuit, tassel