The Jaibatsume Relic was a katana handed down generations through the family and used for ceremonial practice, usually for trials performed to elevated family onto positions on the council, later replaced with the Rifle and Six shots ceremony, the blade was used to slice six tatami mats in under 15 seconds as a demonstration of commitment, strength and will power.
The blade was later passed down to Yumi Jaibatsume and was used by Winter Celestiasume to execute Kenzou Mawji; it was passed onto Mee-young Jaibatsume who was later stabbed with the blade by her Ex-wife, Asami Hasegawa in a deceitful moment with a dangerous entity.
Today the blade lies in the hands of Tamashi Tankyu-sha who “elevated such a cursed relic from the hands of those fat enforcers”