This is probably the slow-burn coming-of-age journey and adventures of an ordinary swordsman.
Introduction:
"You want to save people? ... A so-called sword that spares lives?
Hah. Only children who've never seen the darkness would think they can win without killing their opponents.
I know. A shake of the blade can fling away the traces, but the weight of sin only clings more tightly.
But there are no good people in this world to begin with.
All I seek is to protect myself.
'Human nature is asura; the mortal world itself flows into hell.'
Human nature is a battlefield of asuras; the mortal world is hell."
