Rule 34 Dev - 1boy 1girl blue_butterfly blue_eyes blue_hair bug butterfly butterfly_hair_ornament demon_slayer_uniform hair_ornament haori highres insect japanese_clothes katana kimetsu_no_yaiba kochou_shinobu na_(sodium) parted_bangs purple_butterfly purple_eyes purple_hair sword tomioka_giyuu updo weapon|23708183850