Divine Protection of Many Gods - Chapter 100

When I was 15-years-old, during the year that I graduated from middle school, my father told me this.

At the genesis of the world, the ‘Dark God Entropy’ was defeated in the fight between the five other Gods, and was sealed.

Hiding in the Cold Palace and eventually becoming a Boss of Sorts. Li Mu was transported to a fantastical world and became a measly eunuch of the State of Xia. Despite having initially thought that his life would be a miserable one, he had unexpectedly acquired a check-in system.

Leiyin accidentally crossed into the One Piece World, and accidentally obtained the Naruto System.