So in his lore, Grandpa had recently left Grace he had shortly got together with a rich black cat who I haven't got a name for yet. They both we're greedy and bonded extremely well together. But once she became pregnant, Grandpa said "Peace" and left to get the milk basically. She becomes extremely mad and for the remainder of her son life. She neglected him and manipulated her son (who didn't realize it at the time) into getting revenge on his father who he doesn't even know. Kenny would go to college and have a good life for a while. He's working as a sales man and runs into Dogman's gang and meets Petey for the first time. The two become great friends but once he meets Grandpa "who he's only seen one or two photos of) starts to feel the urge exact his mothers revenge and then a bunch of bad things start happening as he loses his job, his house, and feels like he's losing his mind. His mother shows back up in his life and finally pushes him into going into the life of crime. He then has a villian arc and his more darker side starts to show as he manipulates everyone around him. Petey and them try to stop him but it only causes the stubborn cat to keep pushing farther. They eventually stop him and he has a break down and refuses to have any of their help. He gets put in cat jail and sits in his self loathing. He's kinda depressing.
