Wabisuke

侘助

Izuru Kira's Zanpakuto.
Wabisuke's spirit appears as a gaunt, shirtless man. He bears a large metal ball on his left shoulder and holds Izuru's Shikai in his right hand. His trousers resemble those of a Shinigami's shihakushō but are secured with chains rather than an obi. He is consistently depicted with his head bowed, allowing his hair to fully obscure his face. A large stone tablet is chained to the spirit's body, appearing to weigh him down; this mirrors Wabisuke's ability to double the weight of those hit by his blade.
Appears in the Zanpakutō Unknown Tales arc (anime only)