In fact, this world is the Cthulhu mythology universe and a mixture of Chinese myths and the myths of many countries.
In the cause of MC's the fourth death, identity of the monster summoned is Shoggoth.
so hopeless cosmic horror world
and MC got a a talent for be loved from all of evilthings. MC does not want to be, but he is too much badly loved.
and this novels keyword is law of Causality.
Every event has its cause.
If anyone break that law, will be doom
It is an absolute rule and fate that even the gods can not avoid.