Sgt. Frog

"I am Sergeant Keroro!" Keroro, an alien from the planet Keron who came to Earth to invade it, is captured by junior high school student Fuyuki Hinata and his older sister Natsumi after sneaking into their home. Abandoned by the main force of the Keron army and left behind on Earth, Keroro becomes "friends" with the occult-loving Fuyuki and settles in the Hinata household under the guise of being officially assigned there. While enjoying fulfilling days (?) on Earth, Keroro has not given up on his invasion plans. A fun and extraordinary story begins as he involves his comrades and the Earthlings like Fuyuki!