Rule 34 Dev - 1boy black_gloves blue_hair book dr._ratio_(honkai:_star_rail) fingerless_gloves gloves hair_between_eyes hair_ornament highres hoki11 holding holding_book honkai:_star_rail honkai_(series) looking_at_viewer male_focus open_book red_eyes shirt short_hair sleeveless sleeveless_shirt solo|21218165982