A ghost haunting the storage room that Aki converted into Keroro's bedroom—which is why she got such a steal on the place. She spends most of her time watching the frogs go about their business, usually unnoticed by them.
Her story's actually kind of tragic. Centuries ago, she was imprisoned for sheltering a Keronian (thought to be a Kappa at the time) who bore an uncanny resemblance to Keroro. The official record says she died locked up in a cell beneath that very room. But the truth is messier: the alien she hid actually helped her escape, and she lived to 90. Fans often speculate she haunts Keroro's space because he reminds her of the Keronian who saved her life.
The only person who's ever discovered her real name is Momoka, who pulled off the wild move of turning herself into a ghost just to get close enough to Fuyuki to find out.
Content compiled by AnimeList.moe from publicly available sources.
