When the fourth champion was chosen for the Triwizard Tournament, it wasn't someone that anyone was expecting. In fact, it was someone that a majority of people didn't even know existed until that very moment. (Fem!Shikamaru - Male!Ino)

Kurama didn't quite realize the time ratio difference when he had left for the demon world, he regretted it now. But now that he was back in this dimension, he was determined to figure out what has happened since he was gone, starting with finding his children, the bijuu.