1koma, 2boys, abs, animal_ears, arknights, bara, clothed_male_nude_male, comic, couple, doctor_(arknights), furry, furry_male, furry_with_non-furry, hand_on_own_chin, hinokumo_f, hood, hood_up, interspecies, large_hands, large_pectorals, male_focus, monochrome, mountain_(arknights), multiple_boys, muscular, muscular_male, nude, out-of-frame_censoring, pectorals, scar, scar_across_eye, scar_on_face, short_hair, size_difference, stomach, stroking_own_chin, thick_eyebrows, thinking, tiger_boy, tiger_ears, undressing, yaoi