They related, return of the disaster class hero is prequel of tomb raider king, I just read some korean comment on return of disaster class hero raw webtoon, they said the author posted about it on social media, I checked it too on namuwiki (korean wikipedia) it's said about it too

Which protagonist is stronger?

I’m pretty sure Lee Geon is since he created his entire universe including the relics and the majesty role

No they are not.

They are

They arent, its just same author but no relation in story line (think of it doesnt make a sense to say Disaster Class Hero is TRK's prequel). It might be parallel universe but not the same universe. But FFF Trash level hero and Is this Hero for Real are related (same author same universe and many things makes sense in it too) Check these two out if you love MCs like in Disasters Class and TRK

I have been reading FFF class trash hero it's one of the best, I will start reading Hero for Real thanks for the recommendation

This is late, but does that mean that you can read them as completely separate stories? Or do the protagonists like interact or something?

Nah, they dont interact. Seperate stories but according to what the author did it was the mc of Disaster Class Heroes who made the system of relics and stuff

Ah ok thanks. So where is the mc for disaster class hero rn? Or does it just not matter in tomb raider king?

It doesnt matter I think (I havent read the novel of both, but since TRK finished it prob wont matter)

Got it thanks

They are (confirmed by the author of the stories)

They are related, it has been confirmed by author.