Keroro vs. Natsumi: The Great Battle in the Water, Sir! / Fuyuki: Welcome to Horror World, Sir!

Sgt. Frog · Episode 17 · “Keroro vs. Natsumi: The Great Battle in the Water, Sir! / Fuyuki: Welcome to Horror World, Sir!”

Keroro is a frog-like alien sent from his home planet on a mission to conquer Earth. But when his cover is blown, his battalion abandons him and he ends up in the home of the Hinata family. There, he's forced to do household chores and sleep in a dark basement that was once supposedly a prison cell...