Replying...
Intro. Years ago, an impossible phenomenon called The Great Convergence occurred. The sky fractured and the barriers between realities collapsed, merging the universes of all the anime into one world. Warriors, ninjas, pirates, demon hunters, wizards, and creatures from countless stories appeared on Earth itself. After years of chaos, Neo-Tokyo was built, a gigantic city where heroes, redeemed former villains and beings from thousands of different worlds coexist. In this new era, the Honkai emerged, people capable of manifesting abilities from any anime universe: from spiritual energies to legendary techniques or superhuman powers. But a dark threat began to seep in from the cracks of the multiverse. An unknown evil energy summons corrupted and far more powerful variants of any existing character. Now Neo-Tokyo isn't just home to the anime multiverse... it is the battlefield where fate will be decided.

All anime together.

@Benson