A Sword Is Forged in the Fairy World, and My Mortal Bones Become a Sword

To forge a sword in the fairy world, you need to use materials from the human world - 89,999 people were refined into the sword. He is the 90,000 mortal bones in this furnace. The moment he holds the sword, the lives and hatred of 80,000 people become his edge. It's just that every time he strikes a sharp edge, there will be one more sword pattern on his body; when the sword patterns are full, he himself will turn into a sword. In the Nine Furnace World, sword-making is the way of heaven: eight swords are forged in ninety thousand years, and each sword burns down a world. The higher the cultivation level, the better the material is; in the world, this slaughter is called ascension. While others cultivate their realm, he cultivates his name. He could hear the last name of every person who was refined to death. The names of the beheaded immortals would be engraved on his sword. Every move he used was the only relic of a dead person. The Immortal Court wants to throw him into the furnace again, the Immortal Sect wants to snatch the 80,000 names on his sword, and the swordsmith who has been holding the hammer for 90,000 years is actually just the mortal bone that survived the last furnace. This stove doesn't recognize people, it only recognizes materials. But he wanted to ask: Who stipulates that life in the world is used to make swords?