Holy Eyes: Slaying Gods with Mortal Flesh

Worldbuilding: The [Gods] grant a pair of [Holy Eyes] to the lucky ones they choose, giving them the right to enter and live in the [Spirit Realm], the plane closest to the gods, and travel through various side worlds to face the gods’ trials. Those who pass through a side world may leave, continuing to live with the gods’ gifts. Those who fail will remain trapped in that side world forever. After each side world, participants receive points and items based on their performance. Among these items, the [Fated Artifact] is custom-made to suit its user’s abilities and preferences, and only that user can wield it.

Each person’s Spirit Eye has a different ability. That ability will pass to the next lucky one only when its owner dies.