Sport is his life
Peeko, his best friend, has a hard time following him and sometimes just lays around and is lazy, waiting for Zu Zu to return home.
Then they enjoy a big yummy meal and cuddle each other until they both fall asleep
You want more story? Sorry to disappoint you, because there is nothing else to tell you, just that Zu Zu and his friend are enjoying every single second of their life. And no one can ruin this for them.