Tesla Note, Volume 4

Pino and Elmo of the mysterious "Little House" reveal (much to Botan's amusement) that their official name is Una Casita, which sounds a lot like "I'm hungry" in Japanese. But she can't laugh about it for long, because Una Casita has a pair of Tesla fragments that lets them dominate in battle! It's all hands on deck as their naval battle reaches its climax!