Cool Concept. A GTS queen seems really cool. My initial thought was that this would involve original characters but the way this interactive was divided up was that it allowed for arcs involving popular characters from Anime, Manga, Books, Cartoons and comics. There was a section for Original characters as well but it definitely allowed for this interactive to be a lot more vast. The arc available so far involving the Sakura from Card Captor Sakura was set up pretty will and thought out. It would be interesting to see where it goes.

I also really like some of the original characters described such as Sarah Cartwright, Maria Goddard and Jessica Dawes. Hopefully those storylines can be developed some more. Best of luck with your writing.