Aika is a smart and athletic high school girl. She is so competent that she successfully passes the salvagers license test, obtaining a C-class license. Yet, she is young and hotheaded, so much so that Gota still treats her as a child. Due to this personality, no one is willing to hire her for salvaging jobs. Since she had taken the trouble to get her license, she decides to post an ad in her school to attract clients. She manages to get the attention of Erika, a daughter of a rich family and the leader of the treasure hunting club. She asks Aika to salvage something from the sea and Aika delightfully accepts the request. However, upon seeing the state-of-the-art submarine loaded onto Erika's private cruiser and discovering their destination, Aika realizes the terrible nature of her assignment. This results in a clash with a group of high school girls in the southern islands. Who is the mysterious girl named Karen? So begins Aika's newest challenge!

A completely new feature-length animation commemorating the 100th anniversary of Shigeru Mizuki's birth. The story of Kitaro's father is revealed for the first time.

Hurricane Keiko has arrived! The newscast weather segment. Usually the last thing anyone ever thinks about (unless they said "sun" and it wound up being "rain") but Keiko Nakadai's going to change all that. Toiling in obscurity for years at a horribly rated TV station, Keiko has figured out what the weather report needs and doesn't mind taking off her top (or lifting her skirt) on the air to do it. The ratings aren't going to go down, that's for sure. Of course, some of the people at the station don't find this appealing, and decide that Keiko's got to go. They devise a series of horrible "accidents" for her, but Keiko usually seems to be about a step ahead of them. Eventually, everyone at the station will discover that there's far more to her than meets the eye as Keiko's star rises incredibly quickly ... and as her importance increases, Michiko Kawai's (the old weather girl) drops. Something has got to be done, but who can do it?

A young man passes a pet shop on his way home, and seeing a kappa in the window, decides to buy it on a whim. He brings the creature home, and names him Kaatan. He's never owned a kappa before, so he relies heavily on a book he purchased on the subject of raising and training kappa. The books gives several good tips for bringing up a smart and well behaved kappa, and it all seems very simple. Unfortunately, putting these techniques into practice and actually making them work is not quite as easy as the book implies. Kaatan seems to understand things at first, but usually ends up either forgetting what he's learned, or isn't interested in learning in the first place. However, this particular young man has a lot of patience, and continues his possibly fruitless effort to raise Kaatan into a pet he can be proud of.