Rule 34 Dev - 1boy 3337g1 buck-tick buttons closed_mouth couch flipped_hair greyscale hand_in_own_hair highres jacket lapels long_hair long_sleeves looking_ahead male_focus monochrome on_couch pants parted_bangs real_life sakurai_atsushi shirt simple_background sitting solo turtleneck undershirt white_shirt|25524637164