Kill That Demon Lord Already

(Told in first person. Full of sweetness, and the short story is complete. There may be bonus chapters dropped at random, haha. Any bonus chapters will all be posted in Chapter 10.)

The System told me to kill the Demon Lord so that my beloved, who died on our wedding night, could be brought back to life.

When I killed the Demon Lord for the seventh time after being reborn, I even wore a trace of weariness on my face.

He gripped the mark on my wrist, his eyes bloodshot:

"Heh... You only see me as his substitute..."

I said, "Good boy. You die first, and I'll be right behind you."

But when I was reborn for the eighth time, he had memories of his past life.

Again and again, he asked me, "Zhusheng, who am I?"

(The male lead's name is Xijue. The second character is pronounced like "jue" in "tactic.")

Theme: Be brave for love.