Rule 34 Dev - 4girls bat_wings blonde_hair blush book fang female_focus flandre_scarlet hat izayoi_sakuya light_purple_hair long_sleeves maid_headdress mob_cap multiple_girls one_side_up patchouli_knowledge purple_hair remilia_scarlet ruru_(artist) ruru_(heat_haze) short_hair siblings sisters touhou wings|202308561