Satomi Koorogi

Takamine Kiyomaro, a depressed don't-care-about-the-world guy, was suddenly given a little demon named Gash Bell to take care of. Little does he know that Gash is embroiled into an intense fight to see who is the ruler of the demon world. All of the demons have to pick a master on Earth and duke it out with other demons until one survives. Needless to say, Kiyomaro becomes Gash's master, and through their many battles, Kiyomaro learns the importance of friendship and courage. (myanimelist.net)

One day, the Nohara family met a mysterious alien from outer space named Shiriri. On being basked by a ray emitted by Shiriri, Hiroshi and Misae became 25 years younger and appeared as kids. To be able to return back into adult form, they must find Shiriri's father, who is somewhere in Japan. This situation, which initially started with Shinnosuke's family and later his friends, gradually involves the entire of Japan. (imdb)

Chi is a sweet playful kitten who's always full of energy. She lives with the loving Yamada family. (imdb)

Shinnosuke "Shin-chan" Nohara is a little boy who seems to do everything he can to annoy his parents and teachers (and succeeds wildly), but only means the best. He just tries to have a good time and in doing so does things which will create the maximum vexation in others. (Anime News Network)