Youkai Ningen Bem

Yōkai Ningen Bem (妖怪人間ベム, Yōkai Ningen Bemu) is a Japanese anime television series which first aired on Fuji TV between October 7, 1968 and March 31, 1969.

The series was later rebooted into a second anime television series featuring new cast, which premiered in April 2006 in Japan on Animax, and later across its international networks, including its English language networks in Southeast Asia and South Asia, for which Animax produced an English dub under the title Humanoid Monster Bem.

A live action television drama adaptation premiered on NTV on October 22, 2011. A film was released on December 15, 2012.

Plot
Three yōkai, Bem, Bera and Bero, arrive at a large coastal city and come across an evil atmosphere brought about by humans' immoral behavior and mischief caused by monsters and yōkai. They decide to stay in the city, fighting against their kin which attack humans, making a few friends along the way. Even though the three yōkai are often abused and discriminated against by other human beings due to their appearance, they still strive in protecting the human populace of the city from other monsters, one day hoping to become human beings in return for their good actions.

Other Sources

 * (1986 Anime)
 * (2006 Anime)