[Premise: Uchiha Izuna's gender changes. (Feiquan)]
My name is Uchiha Kaikuna.
After offering sacrifices to heaven and gaining boundless power in my previous life, I was reborn!
In this life, I want to take back everything that belongs to me, hahahahahaha!
... Just kidding.
This is a world where I and my natal sword are struggling in the ninja world.
After experiencing "Uchiha Izuna's gaze" and "Uchiha Madara's contempt", I finally achieved a stage victory.
Ninja forehead protector ×1.
Purpose: love and protection