Time skip(Sephiroth is now 24 years old and Agatha is like 13)
*Background information*
So like, Sephiroth (Agatha's brother) is a detective and Agatha is an investigator that helps Sephiroth from time to time. I thought it was a good idea to make Sephiroth a detective because it just fits him due to how mysteriously intelligent he is and Agatha is just there to support him.