Synopsis
One day, a mysterious alien baby from outer space arrives on Earth and is found by only-child Michio Mikita. Michio decides to raise him as his own child, much to his family's astonishment. He soon discovers the baby can talk—though not perfectly—walk, and perform magic, and he uses his powers to cause trouble for Michio. Much like Nobita Nobi from Doraemon (another manga series by Abiko's friend Fujiko F. Fujio), Michio is bad at his job and clumsy, so things become even worse when UB gets into mischief, despite being just a baby. The manga and anime recount the adventures of this duo.
