1boy, abioticmeat, abs, animal_ears, arknights, armpits, bara, biceps, blue_eyes, book, chest_tuft, completely_nude, covering_crotch, covering_privates, cowboy_shot, facial_hair, furry, furry_male, goatee, hand_on_own_head, holding, holding_book, large_pectorals, male_focus, mature_male, mountain_(arknights), muscular, muscular_male, navel, navel_hair, nipples, nude, open_book, pectorals, scar, scar_across_eye, short_hair, solo, stomach, thick_arms, thick_eyebrows, thighs, tiger_boy, tiger_ears, triceps, white_hair