A baby has come to visit Ashibe-kun's house! It's Yumiko-chan's baby sister, Ruriko-chan! Ashibe-kun and his Ma and Pa are all so enamored with Ruriko-chan that Goma-chan isn't getting any attention, making him a bit grumpy. Ruriko-chan appears to like Goma-chan, but Goma-chan is irritate that she treats him like a plaything. And so the battle between Goma-chan and Ruriko-chan begins?!
Good boy, good boy...
...ولد مطيع، ولد مطيع
Braver Junge, braver Junge …
Buen chico, buen chico.
Buen chico, buen chico.
Dors sagement !
Bravo bambino, bravo bambino...
Tão bonzinho, muito bonzinho~
Хороший мальчик, хороший мальчик...