You should read the novel because it’s great in my opinion
Do you know where I can find it? my summer reading list is short so anything to pass the time is welcome.
Try this link and there are about 164 chapters.
https://www.readlightnovel.org/the-death-mage-who-doesnt-want-a-fourth-time
Also if you need two or three recommendations of good isekai light novels. I can recommend:
https://www.readlightnovel.org/isekai-yururi-kikou-raising-children-while-being-an-adventurer
https://www.readlightnovel.org/overgeared
https://www.readlightnovel.org/mmorpg-rebirth-of-the-legendary-guardian
This manga seen very promising and starts off very dark but I can see a lot of potential.