Time traveling at the same time is like this. As long as the chat group exists, Baili Chen in a different world has a lot to consider.
Shape Moon World: Lostbelt too dangerous? Bai Lichen directly projected the flowing blade like fire to burn the fantasy tree.
Demon Slayer World: Do you have to use Krypton life to open stripes to beat Mu Ke? The Hyōrin Pill in Bailichen's hand had something to say.
Monster Hunter World: Are all ancient dragons inevitable natural disasters? Bailichen simply used Mirror Flowers and Water Moon to hypnotize them into becoming his own Pokémon.
As for the world of Death...
Aizen: Even if your swastika is to summon countless swords, you still can't surpass the limits of death!
Yhwach: A mere summoning-type Zanpakuto cannot possibly cause any trouble in front of my omniscient and omnipotent person!
Baili Chen: That's good, but if I can understand all these countless swords from different worlds, how should you deal with them?
[This book is about simultaneous time travel + chat group + flow of all heavens and worlds, and the main world is the God of Death]