Dylan and Anna didn't want to attract attention all the time, so they could only leave Kitty there.
The aggrieved cat could only busy himself to hunt many big mutated animals nearby to eat.
And at this time, Kitty was already at the peak of rank 6.
He felt that he could reach rank 7.
But for big mutated animals, rank 7 was very important and not so easy to reach. Kitty also knew that there might be other changes in his body after he reached rank 7, so he was not in such a hurry.
Even if he wanted to eat a lot of big mutated animals' meat in order to get stronger quickly, he also needed to get used to the strength of his body and also various other things.
And because Kitty has become so big, he become the mount for Dylan and Anna.
