Arale Goes to School!: Everybody in Penguin Village Junior High is asking Arale to join their clubs but Arale seems too good for all of them.
It is! ...not there: Arale comes home from school and tells Senbei that the girls at school said that she is missing a part of the body that the other girls had. Senbei makes a pair of glasses that see through peoples clothes so he can see girls naked and "find out what she is missing". In the end it actually was a belly button that she was missing.