The lost kitten followed Chocola home. Cocola wants to keep the kitten, but doesn't want to discuss the matter with Kashou. Vanilla finds out about the kitten, and asks Chocola why she wants to keep this a secret.

The kitten is now an official member of the La Soleil family. The cats gather at the Minazuki house for their monthly health checkup, and realize that they never came up with a name for the new kitten.

Coconut and Azuki clash as usual, but when Coconut breaks Azuki's favorite bowl, things get a little more tense than usual. Shigure organizes a sporting event for the cats, hoping that some friendly rivalry and exercise can help.

Cacao visits her human friend Chiyo's house to have a sleepover. Chocola and Vanilla are having a mild panic from being apart from Cacao, and Cacao experiences a new sensation by spending time outside.

The cats go shopping at a department store to buy new swimwear for an upcoming beach visit. After grabbing some equipment in addition, the whole family goes to spend time on the beach.