Rule 34 Dev - 1girl 2boys brother_and_sister brothers brown_hair closed_mouth collarbone elbow_on_another's_shoulder elbow_rest facing_viewer grin hair_bun hair_ornament hair_pulled_back hair_ribbon hair_strand hairclip happy highres hood hood_down hoodie kimetsu_gakuen kimetsu_no_yaiba konsobastew laughing long_sleeves miniskirt mohawk multiple_boys necktie open_mouth pink_ribbon pleated_skirt purple_background purple_eyes ribbon scar scar_on_face scar_on_nose school_uniform serafuku shinazugawa_genya shinazugawa_sumi siblings single_hair_bun skirt smile twitter_username x_hair_ornament|16310953503