SPOILER ALERT I lost track when I reached the "latest" chapter and now that I head that it has ended I want to finish it. The last thing I can recall is when "Rimuru goes to Guy Crimson's castle to chat with him"more or less. Also I dont remember if it was the web or light novel. I can recall things like "when Rimuru anihilates a whole army with lasers, very gory, when "The ork? berseker girl dies in the town invasion and the guy picks her soul from within the city defense barrier" or when "Rimuru tames the black drangon's sister (sisters?)". I don't know if those things happen in both light and web novels (I don't know the difference between them). Thanks beforehand. EDIT: It seems spolier-thing doesn't work (or I don't know how) so I will let it like it is. Sorry, I didnt know to put the spoilers right. PD: It seems spolier-thing doesn't work (or I don't know how) so I will let it like it is. (in the previous post everyobdy thought I was trolling or retarded)
You do realize there are like 4-5 novels on Novelupdates with slime tensei in their title? Gotta use the full name to prevent confusion. Also specify if you're reading the LN or WN. https://www.novelupdates.com/series/tensei-shitara-slime-datta-ken/
It's in both, the massacre arc as I call it, is around chapter 69. The talk with Guy maybe around chapter 169...