Season 1:
Long ago, at a school called Banban's Kindergarten, the faculty was doing secret research on a substance they discovered called Givanium. Their star student, Claire came in and takes a look. Then, the givanium started to explode and the faculty started to change...
...
In the present, a man was about to perform an autopsy, but... "Hey," says Maddison White.
"You're alive!"
"Yeah, she's alive," says Maddison's uncle, Joe Hall, "didn't you see her move?"
"I thought she was animatronic!"
"Thank you for your help, you can go now," says Joe.
"Was I that convincing as a doctor?"
"Yeah, because I hate doctors and I hate you," says Joe. He pushes the actor out.
"Dinosaurs still roam the Earth," asks Maddison, "bank accounts are a conspiracy? Clowns are aliens? How do you come up with this stuff?"
"It just comes to me," says Joe.
"Have you ever wanted to do something real," asks Maddison.
"Maybe some time ago," says Joe.
Then Rachel, Maddison's mom and Joe's sister shows up. "Maddison, time to go," says Rachel.
"And I gotta show these pictures now," says Joe. He leaves.
"When will he grow up," asks Rachel.
"I hope never," says Maddison.
...
At the Daily Cube, Kelly Weaver, Joe's former boss and ex, walks into her office where she finds him there. "Hey..."
"Go away, Joe," says Kelly.
"Wait, this time, I got something good..."
"Joe, I only write true, serious stories," says Kelly, "not nonsense you hire actors and your niece to help you with!"
"Yeah, but..."
"Leave or I'll call security," says Kelly.
Joe had to leave the office.
...
When he gets home, an old woman is waiting for him there. "Mr. Hall! My name is Bethany, and I need your help with something!"
"I'm afraid I'm busy..."
"It's about missing children," says Bethany.
"Where," asks Joe.
"Banban's Kindergarten!"
This is Non-cannon to the Ultimate Advanceverse. This is not connected to Garten of Banban × Ben 10.