Been reading this light novel....

It called The Death Mage that doesn't want a fourth time.
It a great series, but also a sad one. Alot of talks about child abuse,rape, and other negative issues. I do respect author for while it an isakai aka another world type story he mention many topics that still pretain to earth. For exp, the author doesn't choose a side if abortion is alright or if the baby has a soul after or before he/she is born.

So what the Light Novel about?
It a boy struggle to defy fate itself without many allies in the world. He gets betrayed many times by his own peer and even gods. It a great series.
Yes there a manga for it but it really slow....
Read it here:
https://www.lightnovelbastion.com/project.php?p=248