I, the Godslayer, Want to Be Human

I, Shi Jin, have lived for more than five thousand years and killed millions of people. It's not that I want to kill. It's the curse that forces me to kill. If I don't kill the wielder of the artifact, I will die. The miko of Ukisakura Island, the general of the mixed-race city-state, the boy who wants to protect his companions in the mine, etc. They all died by my sword. They don't want to die. I don't want to either. But I had no choice. Until I picked up a little dragon girl with red hair and red eyes. He is of low bloodline, is hunted by his tribe, and even his transformation is unstable. But she looks exactly like the Dragon Lord who died in my arms five thousand years ago. Before he died, the Dragon Lord said: "Take her away for me once." OK. I'll take it. Anyway, on my road, one more person is not much, and one less person is not much. But this girl actually depends on me. She said: "No one has ever been so kind to me. Even if I die, I will follow you." I've killed people all my life. Now, I kind of want to protect someone. But I don't know if this damn curse will force me to point the knife at her one day.