The main visual is illustrated by Higuchi Konomi, and features two characters from each of the four works represented in the game: BlazBlue, Under Night In-Birth, Persona 4 Arena, and RWBY.
Here the game mode details:
Episode Mode
In Episode Mode, players can enjoy an original story where battles unfold on the “Phantom Field,” a singular point where the worlds of the four works represented in the game come together.
Tactics Mode
Enjoy the unique systems of BlazBlue: Cross Tag Battle while acquiring new knowledge.