@This is making me nuts T⌓T and I guess that was the reason he went mad after her death in the original story? Because he couldn't stay sane with this unbearable amount of magic
Spoiler!
Underrated manhwas I recommend:
1. The Foul
2. No Moral (novel as well)
3. Circumstances of fallen lord (novel&manhwa)
4. I'll raise you well in this life
5. One roof two strangers