No Hope (Virtual Youtuber Harem x Male Reader)

Y/N L/N is a half-normal guy. He has a wife, a 2 year old son, and a 5 year old daughter. The non-normal part of him is that he is one of the smartest people on Earth, he is a scientist that does... some not so normal experiments. One day, his wife accidentally injects herself with a syringe with a mysterious black liquid in it, thinking it was a cure to her disease, this is the thing that causes the downfall of Earth.

All highest rankings for this book so far
Vtuber - 16th ranking
Vshojo - 1st ranking
Femalexmalereader- 13th ranking