The Unarmed Demon-Slaying Sword

“That child is a little unusual compared to the others. He feels pain but never says he’s in pain, knows joy but never smiles. He must have sad feelings, but he never grieves, and he should have been angry, but he never gets angry.”

“Is he a bit lacking somewhere?”

“Haha! Not at all. It’s just that once in a while there are children like that—children who become adults at such a young age.”

Jin Sa-un, raised as a killing child in Guhyeong Valley, called Seopaera, and destined to die by the Cheonsin Sect.

The sole survivor of Guhyeong Valley, the only killing child, turns his sword against the Cheonsin Sect.

Jin Sa-un.

The name of the one who transcends extreme speed and possesses the swordless state.