Howoldies is an animation series set in a world where the characters are numbers. The numbers represent each of the characters ages. Maryeight is a city girl who wants to spend her time playing with the other kids. Although, it seems that her parents, her teachers and the city are determined to prevent this from happening and they are able to manage an infinity amount of tricks to do so. But they’re in for a surprise if they think Maryeight is going to give up on playing with kids.