Lustrous Scale (
Lustrous scale has different abilities depending on its current form.
Sword: Making use of a curse, it emulates "rips in space" that can theoretically sever anything made of physical matter.
Bow: It fires whistling arrows infused with ritual energy, chanting large-scale curses beyond human voice capacity and functioning as a curse artillery.
Due to its difficult usage, simpler models were manufactured and mass produced. They were essentially the same weapons, but split in two. The sword Rosenkavalier plus (ローゼンカヴァリエ・プラス) and bow Freikugel plus (フライクーゲル・プラス) each have the abilities of its respective counterpart. They are wielded by Yuiri Haba and Shio Hikawa.