Li An awakens in a chaotic fusion of anime worlds, finding himself in the midst of the Night Parade of a Hundred Demons in Tokyo. Initially believing he is trapped in a harmless slice-of-life setting, he quickly realizes the deadly reality of Jujutsu Kaisen when cursed spirits overrun the streets. Just as death seems inevitable, he activates a golden finger: the template of Rimuru Tempest, the powerful slime from That Time I Got Reincarnated as a Slime.

Granted temporary god-like powers including Devourer, Great Sage, and Dragon Spirit, Li An effortlessly crushes high-grade curses that terrify even Special Grade sorcerers. His overwhelming presence shakes the entire jujutsu world, alerting powerhouses like Gojo Satoru and Ryomen Sukuna to a new, divine entity. However, knowing this borrowed power is limited to three uses, Li An must strategically utilize this brief window of invincibility.

He races against time to devour enemies, analyze their innate techniques with Raphael, and permanently assimilate their abilities before the template expires. Now, standing above Shinjuku as a false god, Li An begins his journey to forge his own path, turning the balance of power in this multi-universe war on its head.