Wandering Through Group Chats: A Journey Beginning in a Doomsday Novel

After finally escaping from a world that had made him stupid, Zhang Beihai embarks on new adventures with the help of a group chat in his mind and a manifestation System.

What would happen if the protagonists of three different worlds, Sword Drawn, Iron Man, and HALO, along with several transmigrators, all met?

Planned worlds:

A harem zombie novel of my own invention; Black Bullet, because this world is so disgusting I’ll find an excuse to tear it apart; Avengers 1, just a brief appearance at the end; Gate, just gathering resources and taking care of the Japanese along the way; Space Battleship Yamato 2199, the big name among Japan’s three great sci-fi anime franchises. The rest can come later, no rush.