Kokusen

A well taken care of katana that was stolen by Yoshiki Kaya from a dead Shinigami as an Asauchi.

Shikai
Description: Upon making a cut onto any opponent(s), the wound, even if just flesh begins to seem infected. Over the span of three posts, the person that was attacked will notice a mark growing bigger and bigger each time. Upon the third post, the marked one begins to see hallucinations of the Yoshiki, as if they are moving at high speeds and attacking. This mark injects Yoshiki's spiritual energy into the user's body then attacks the brain and optical view, allowing the marked one(s) to have blurred vision. They won't be able to properly distinguish which is the real Yoshiki and which is merely just a hallucination.
 * Erudoritchimākingu (Lit. Eldritch Marking)

Description: Once infected by Eldritch Marking even immediately, Yoshiki will be able to see the marked one(s) with his own Reiryoku upon them, making it very easy to track them, no matter where they hide. It is possible to rid themselves of the mark however, at what cost?
 * Hantā no me (Lit. Hunter's Eye)