Ōetsu Nimaiya (Sig)

Ōetsu Nimaiya (二枚屋 王悦, Nimaiya Ōetsu) is a member of the, holding the title "God of the Sword" (刀神, Tōshin). He is the man responsible for the creation of what Shinigami use in their everyday lives: Zanpakutō. After being approached by the Ishihara Yamakage, he decided to take him in as his personal student.