Invincible Sword Domain

I have a sword to cut off the cause and effect of the past life. If I am not practicing the sword to show off, it is better not to practice it. If I am not killing people to show off, it will be meaningless. If I am not living to show off, it is better to die. Just kill him, his corpses are everywhere, pretend, just pretend that he is undefeated! Let's see how the protagonist reaches the top step by step and becomes invincible in the world This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.