Kabane Katana

The Kabane Katana is a sword fixed by Ikoma to replace Kurusu's old one.

History
After Kurusu broke his katana attempting to pierce the heart of a Wazatori. Ikoma took his broken sword and reforged it. He coated the sword in the substance covering the hearts of Kabane making it more durable. This would supposedly make the sword capable of piercing Kabane hearts, but that has yet to be seen.