Also known as: 파이윈체스터
Closers character.
Closer of Wildhüter who uses the Blade of the Ice, which has the power of Dimensionals imbued into it. After a certain incident, Bai joins UNION with conviction to save who is important to her, fighting Dimensionals in her way. Creating alluring forms of ice together with the sword skills of her clan of assassins, she will now work not as an assassin, but as Closer who protects the people.