!, !!, 2boys, anger_vein, animal_ears, arknights, biting, brothers, capone_(arknights), closed_eyes, formal, furry, furry_male, furry_with_non-furry, gambino_(arknights), glasses, greyscale, interspecies, iwashi_80, kiss, male_focus, monochrome, multiple_boys, siblings, simple_background, suit, sweater, upper_body, white_background, wolf_boy, wolf_ears, yaoi