Legend of Witch Emperor

This is so called same Reincarnation story where a modern boy reincarnated ,get a system blah blah..Chromius was born as an only son of best witch hunter family(Maggisa Family) of Cyanoun Kingdom in Chroma Planet. But as witch hunters, they also know that all witches are not bad, so they sheltered many innocent witches in their state. But after Church getting this information, declared the Maggisa Family as a heretic and kill protagonist's parents. Now Let's ride this story where Chromius will become enough powerful that strongest existence in Chroma Planet bow in front of him , make a safe haven for witches, gather harems and System makers regret their decision for giving ther best creation to Cold blooded and cunning genius.....

I will not make a mc who catches heroine like pokemon and mc will be much more op because there is always someone stronger than you in this magical world.

I haven't cleared novel tags because there are so many things to consider so wait a bit for that. But, no worry, snu-snu must in the novel ( o_