Once upon a time, there was a mountain, and there was a cave in the mountain. In the cave, there was a "little monster" who was refining elixirs. When he was not careful, the little monster was blown away and traveled to another world.
The "little monster" was bound to the alchemy system during time travel, and has become a new legend since then.
Just a random thought, I just took a seat and will write about it later~
Purpose: I am a little expert in alchemy