Harrison has made two fanfics that have a few things in common, but at the same time they have some differnces. Similarities between Harrison Universe and Harrison's Kingdom Hearts 1. They both contain Harrison Cora as the main character. 2. They both contain lots of characters from many companies for Harrison to interact with. 3. When Harrison and his friends travel to other dimensions in Harrison Universe, they use the term "zone". When Nic and Harrison travel to other worlds in Harrison's Kingdom Hearts, they use the term "world".