Rule 34 Dev - 10s 3boys black_hair creator_connection crossed_arms crossover fate/grand_order fate_(series) fujikido_kenji glowing glowing_eye grin hemeru highres hijikata_toshizou_(fate) male_focus mask mazinger_(series) mouth_mask multiple_boys ninja ninja_slayer scarf sharp_teeth shin_mazinger_zero smile teeth tsurugi_tetsuya|8091379881