@Kaee l
I really recommend you to read the novel, the details are just so much better, and in my opinion more fun to read than the manga.
Spoiler!
The Ultimate villain turns out to be Oscar. Who was a tyrant emperor in his previous life.
Our professor Ilya was an archangel. And the white haired male lead is his actual brother, who was also an angel. After white haired ml died in their previous life, Ilya ended the world and became a demon, who he is now.
Theresa becomes a celestial celebrity, she also dies and comes back to life in this arc... yea, I think I've said too much
Our professor Ilya was an archangel. And the white haired male lead is his actual brother, who was also an angel. After white haired ml died in their previous life, Ilya ended the world and became a demon, who he is now.
Theresa becomes a celestial celebrity, she also dies and comes back to life in this arc... yea, I think I've said too much