UFO Princess Valkyrie

UFO Princess Warukyure, aka UFO Princess Walkֳ¼re is about a princess from outer space who accidentally crashes on earth, where Kazuto desperately tries to maintain the public bath of his grandfather.
Due to circumstances, Kazuto receives part of princess Walkֳ¼re's soul which forces her to stay there with him. But that's not the only problem ... because her soul lost strength, the princess transforms both mentally and physically into a little kid!

[AniDB]

Episodes