When goofy inventor Senbei Norimaki creates a precocious robot named Arale, his masterpiece turns out to be more than he bargained for!

There's something peculiar about the Tsun family, who have been forced to land their rocket in Senbei's yard. For instance, why does their son turn into a cuddly tiger whenever he feels the female touch? And what do the gifted Tsun children have up their sleeves when they compete at Penguin Village's very own high school Olympics?