Ultra-Nyan's adventures continue. This time, he is tasked with finding the cause of the crows' sudden declaration of war upon the cats.

Haruka finds a cat in an abandoned building and names it "Nyan". Little does she know that this cat is actually "Ultra-Nyan" who has come from outer space. Using his mysterious powers, Ultra-Nyan helps Haruka and her friends foil the plans of a couple of no-good catnappers.

Black Jack is a master surgeon who possesses impeccable skills, enabling him to perform operations that are impossible for even the finest surgeons. He now is faced with his most difficult task to date and must challenge the limits of medical science...before it's too late!

War drama based on a short story by Akiyuki Nosaka.