Laura and Kana go to see Mr. Yoshi and Charlotte's new baby, Yamato, and the Ham-Hams go too. While Charlotte, her father, Chairman Rooster, and Laura and Kana go to get Yamato's new kimono, Chairman Rooster leaves Big the hen and the Chicky-Chickies to help Mr. Yoshi take care of Yamato. But the Ham-Hams don't like this and neither does Mr. Yoshi, so Mr. Yoshi traps the chickens outside, but then he falls asleep! Then it's up to the Ham-Hams to keep Yamato out of trouble.
