The anime title is: "Momo Island" Earth boy Xiao Yi crash-lands on a beautiful green planet due to a spaceship accident. To his astonishment, he discovers that this place is actually a kindergarten established by the big monsters of the Giant Monster Planet specifically to punish little monsters who have made mistakes. If they cannot correct their errors, they can never return home to reunite with their families. Thus, the amusing stories surrounding Xiao Yi and the little monsters unfold, awaiting them are one self-challenge after another, as well as an unforgettable journey of growth.