1boy, abs, animal_ears, arknights, bara, blue_male_underwear, breath, bulge, close-up, collaboration, cross_scar, eyebrow_cut, facial_hair, feet_out_of_frame, furry, furry_male, goatee, jockstrap, large_pectorals, looking_to_the_side, male_focus, male_underwear, mature_male, mountain_(arknights), multiple_views, muscular, muscular_male, navel, navel_hair, nipples, pectorals, scar, scar_across_eye, scar_on_arm, scar_on_cheek, scar_on_chest, scar_on_face, scar_on_hand, scar_on_leg, scar_on_stomach, shibata_akira, short_hair, sideburns, stomach, sweatdrop, thick_thighs, thighs, tiger_boy, tiger_ears, topless_male, underwear, underwear_only, white_fur