Simultaneous Transmigration: What Do You Mean the Protagonists Are All Gone?!

He transmigrated into several worlds at once, only to discover that the protagonists of the original worlds had all gone off track. What do you mean Tang San isn’t a transmigrator? What do you mean Luffy’s dream isn’t to become the Pirate King? What do you mean Natsu never joined Fairy Tail? Chen Long was completely dumbfounded. Without Tang San, who could stop Bibi Dong’s ambition? Without Luffy, could the world overthrow the Celestial Dragons’ rule? Without Natsu, could anyone stop Acnologia and Zeref? Chen Long declared, “If not me, then who?”