Responses
Not that I disagree with you about the harem part but she isn't 300 years old. We don't know her age. Just that she can live up to 300 years.
But she doesn’t look younger than 18 either. And if she could live up to 300 it would mean that if she is 18 she would be considered a small child.
Isn’t that just next level pedophilia? A 300 year old wanting to marry a 10 year old? WHO MIND YOU ALREADY HAS TWO FIANCES?! WHICH MEANS THIS WILL ALSO MAYBE BE A HAREM MANGA?! (╯°Д °)╯╧╧