oberon (fate and 1 more) drawn by mame_nabe_donko

2boys absurdres bug butterfly_wings cape crown diamond_hairband dual_persona fate/grand_order fate_(series) fur-trimmed_cape fur_trim greyscale highres insect_wings male_focus mame_nabe_donko medium_hair monochrome multiple_boys oberon_(fate) oberon_(first_ascension)(fate) oberon(third_ascension)_(fate) wings