"So, in the end, the Demigod of the Si Family abandoned the research and left this scrap for their descendants as a memento."
"When I first got this artifact, I didn't think much of it either. I just thought it was a blessing from the heavens on us demigods, preventing the worst possibility."
"But gradually, I had a little quirky idea: the reason this artifact couldn't control a demigod was that a demigod's soul is too powerful. Then if it's used on a Divine Fiend, whose soul is broken (a common Outer Realm demigod perspective on Divine Fiends), could it work?"
"However, although I had this guess, the talisman paper was in my clone's hands, and my clone had a mission to stay in the Real World and couldn't return to the Outer Realm, so it was impossible to test it."
"And honestly, although I had this notion, I really didn't think it had much probability, so I didn't pay much attention to it."