Rule 34 Dev - 1boy absurdres black_hair closed_mouth crossed_bangs gakuran green_eyes green_hair grey_background hair_between_eyes highres huge_filesize kimetsu_no_yaiba long_hair looking_at_viewer male_focus monza_(saeumon) multicolored_hair school_uniform sidelocks simple_background solo tokitou_muichirou upper_body|13814733465