After dying of sickness at 15, I had been reincarnated into the world of the MMORPG “War Chronicles of Desgarde”! The help feature taught me the basic summary of this world, but there seems to be additional secrets about me, aside from my reincarnation. 124n1z
Let’s survive in this Isekai world to become the character I played in my previous life, a necromancer!
(Wait, there’s a Necromancer King? What’s that?!)
8 Volumes (Ongoing)

Honestly it isn't the best story I've read but it has some decent art. I honestly don't really like when a character gets killed off for a stupid reason like "character development" especially when it's basically unnecessary. Not to mention that the MC is a necromancer, why wouldn't he just resurrect the person? Also if you want the reader to be effected and care about the characters then maybe give them more that a dozen chapters before killing them off. It's like in revenge manga when the MC gets betrayed in the first chapter without atleast making it look like it won't happen for a few chapters while dropping a couple clues and hints as to what's about to happen. Anyway, it's not really worth the time.