God Eater: Devourer

When the realms of anime and comics prove to be true, a group of diverse meta-people banded together to save their intertwined worlds. With James, an otaku ex-mercernary with a powerful armband that could transform any weapon known in every anime & comics. They embark on a perilous journey filled with epic battles, unexpected alliances, and the discovery of the deep connections between their beloved universes.

This fanfic consist of different types of worlds of this genre with its own Mc in it.

Devil fruits are what seems to be the common power you can find in the sea, especially when fighting strong opponents who also compete for the treasure of Gold Roger but another kind of power is yet to be revealed said capable of bending reality with their mind. Espers.