Kujirasuimin (lit. sleeping whale)

Name: Kujirasuimin(lit. meaning sleeping whale)

What kind of weapon: an odachi

What does it do:
A large living weapon resembling a black bladed odachi with cutting length of 40" and hilt measuring 30". The edge of the kujirasuimin is extremely sharp that it is able to slice through almost any known material and still retain its sharpness. Its true ability however lies in that the more enticed Hagane gets in the fight, the more blunt the edge of the odachi gets revealing its true nature of bludgeoning and crippling its victims. However, if Hagane is angered, the edges of the odachi will turn into a serrated edge and gets more sharper and serrated the angrier Hagane gets giving it the nature of sawing and to incapacitate an opponent.

Kujirasuimin is also a sentient weapon, aside from giving the wielder sonar like senses, allows no one else is able to wield it unless its previous owner is killed. Any attempt to wield it will cause the kujirasuimin to be unbearable to carry to the point of incapacitating those attempting to wield it regardless of their strength. The blade of Kujirasuimin is wrapped in bandages and is carried by Hagane by being placed on his shoulders.

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