Ikomikidomoe

is an special, inherited Zanpakutō by forged by Ōetsu Nimaiya out of an ancient Hollow.

Appearance
In its sword form, Ikomikidomoe is pure white, almost glowing, large broadsword with black spots on it.

Personality
Ikomikidomoe is quite prideful and arrogant, and is insulted when regular Shinigami even voice the possibility of being on the same level as its current wielder. Likewise, it holds disdain for Arrancar, especially female ones, and seems to know and respect Baraggan Louisenbairn to some degree.

History
A long time ago, Ikomikidomoe was a powerful Hollow that existed during Baraggan Louisenbairn's time as ruler of Hueco Mundo.

At some point in the past, Ikomikidomoe was forged into a Zanpakutō by Ōetsu Nimaiya, who hid it away in the Hōōden. During the Wandenreich invasion of Soul Society, Tokinada Tsunayashiro stole the sword during the chaos.

Powers & Abilities
Immense Spiritual Power:

Weaknesses
Conditional wielding: Due to being a special, inherited Zanpakutō, Ikomikidomoe can only be wielded by select individuals. Specifically, only powerful hybrids such as Ichigo Kurosaki or Hikone Ubuginu can use Ikomikidomoe's power.