Ryunosuke and his father are running away from his crazy mother when, feeling the urge to answer nature's call, Ryunosuke finds a cute little alley cat and decides to keep it. Almost immediately after, they are caught in a fire fight with his mother's lackeys. Tragically the poor cat dies and Ryunouske is heartbroken, but luckily his inventor father just happened to bring along a deactivated robot. By placing the cat's brain in the robot, Nuku Nuku is born! Now all they have to do is teach Nuku Nuku how to behave like a normal girl instead of a super-strong, cat-brained robot, while trying to avoid a mother's wrath!
Momomiya Ichigo was a normal girl, worried mostly about her crush, Aoyama Masaya. However, just as she was finally able to date him, she was struck by a mysterious beam and everything changed. She is now part of the Mew Project, genetically fused with an endangered species of cat. With her new powers and companions, she must protect the earth from invading aliens.
Ranma, raised to be a man among men, has a bit of a problem: he is half woman! While training in China he fell into a strange magic spring at Jusenkyo. Now, he is eternally cursed to change into a beautiful woman whenever he is hit by cold water, but that may be the least of his problems; his father has betrothed him to marry! There's never a dull day for Ranma as he attempts to find a cure for his curse, train to become stronger, and grapple with the fact that half of himself may be more feminine than his fiancée!
Murao Mima has created a robot daughter named Key, but after raising her for a very short time, Mima dies, leaving behind cryptic messages telling Key how she can become human. Key must struggle alone to learn the harsh lessons of life and search for the 'key' to her own dream: the power of 30,000 friends to make her a real human girl.
She cooks, she cleans, and is a lethal fighting machine. Mahoromatic, former Vesper battle android, has chosen to give up her weapons, extending her remaining life from 37 to 398 days. As Misato Suguru's maid, she fights battles of another sort, fending off an amorous teacher on one hand, ecchi magazines on the other. Can Mahoro save Suguru's innocence?
Kazuya Saotome is an electrical engineering student with a passion for computers, building his robot squid, and programming. One day he receives May, a hand sized cyberdoll, in a package from Cyberdyne Co. as a revenge tactic planted in a CD from his rival. With a little help from May to clean up his act, he may even be able to win over the heart of Kasumi, his landlord's daughter.