Bal, a poor boy living on an island, gets the idea to rig a makeshift boat, hoist a pirate flag on it, and become a pirate to get rich. He takes his pig friend Bu, his sister Muge, and the giant salamander Kuna as his crew. He plans to do all sorts of devious deeds in his quest to become a pirate, but ends up doing one good thing after another. What will Captain Bal and his crew do?

[Source: Anime News Network]

The story imagines if Japanese historical figures such as Queen Himiko, the warlord Oda Nobunaga, and samurai Sakamoto Ryōma were cats.

[Source: Anime News Network]