MTL - Great Slaughter System - v2 Chapter 732 Who is it?

Back in 1991, in the face of this golden age, Chen Jianghai swears that he will only live in three words in this life: Lin Wanqiu! The story of a reborn person who built an electrical empire and reached the pinnacle of his life!

- Description from novelbuddy

220 years ago, in the legendary Dragon Demon War, Hero Azell ended the war by killing the evil Dragon Demon race’s King Atein. He was able to save the population, but as a consequence, he was cursed. While he was dying, the high magician suggested a gamble that might save his life.

The leader of the thousand demons, the Demon God Chun YeoWoon. Due to an unfortunate accident, he had been sent to the distant future.

The most powerful sword was broken in an ancient war and now its spirit is reborn in a common sword and bought by a girl named Li Qingming.The sword spirit senses that Li, though weak now, boasts some traces familiar to it, which remind it of its former owner and his friends.