Cornelius and his younger sister, Katrina, are vampires.They've got turned into vampires when they were just kids by their mom who lost control over herself at night.Since late childhood the 2 kids weren't allowed to live a perfect, normal life every kid deserved.

Instead they had to live thru living hell; never be able to go out in the Sun,painful times, times when it was hard to control powers,getting powers that was very painful,etc.

Now they started attending the Rutherford Academy.