Rule 34 Dev - 1boy adam's_apple amikoiiko armor black_armor blue_eyes blue_hair byleth_(fire_emblem) byleth_(male)_(fire_emblem) closed_mouth dark_blue_hair fire_emblem fire_emblem:_three_houses gorget hair_between_eyes looking_at_viewer male_focus nintendo simple_background solo upper_body white_background|24078715713