Just like the title, this is a story between an immortal old monster and the protagonist Goldfinger.
Once upon a time there was a valley, and there was an old monster named Yin Xi who made a puppet as his apprentice.
"From today on, you are my apprentice. You don't need to work too hard to practice spells. You can't surpass me anyway."
Yin Xi said this when he picked it up, but he soon regretted it.
Because this guy is not a puppet at all! He is also a protagonist with a golden finger!