1boy, abs, black_hair, black_male_underwear, blush, boxer_briefs, closed_eyes, command_spell, fate/grand_order, fate_(series), fujimaru_ritsuka_(male), indian_style, kamenakake, male_focus, male_underwear, muscular, muscular_male, navel, nipples, pectorals, short_hair, simple_background, sitting, smile, solo, teeth, topless_male, twitter_username, underwear, white_background