Demon Slayer May Be Set in the Promised Neverland Universe - FandomWire

A popular fan theory is surfacing on the internet that states that anime series Demon Slayer and The Promised Neverland are set in same universe.

— Fandom ask: The Promised Neverland (duh)

3 Avengers Who Will Decimate Demon Slayer's Strongest Character

Demon Slayer: Kimetsu no Yaiba Finale Confirms Nezuko Ends Up

Demon Slayer x The Promised Neverland x My Hero Academia

The Promise Neverland meet demon slayer, GC, part1

Namaryu (CEO of Tanmoshi) on X: The complexity of a Demon Society

5 Things We Want from The Batman Shared Universe - FandomWire

THE PROMISED NEVERLAND Season 2 - FUJI TELEVISION NETWORK, INC.

The Promised Neverland Wiki

5 Things We Want from The Batman Shared Universe - FandomWire