Demon City Shinjuku
Demon City Shinjuku was a novel by the aurthor Hideyuki Kikuchi. It was adapted into and OVA in 1988 by director Yoshiaki Kawajiri. In 2003 and 2004, two mangas by ADV were also released. In 2011 the novel was finally released in the USA compiled with the sequel Demon Palace Babylon.
The anime movie follows the battle between Rebi Ra (evil) and Genichirou (good). The hero died and Rebi Ra was possessed by evil itself. He uses it in his plans to conquer the world by summoning demons. An earthquake devastates the Shinjuku area and it becomes infested with demons. Genichirou had a son unbeknownst to Rebi Ra. He inherits his powers and duty to destroy Rebi Ra and return peace.
Why I chose this anime: I watched this anime movie when I was younger, and I loved the gritty dark themes. The characters were different as well and I liked that. A spooky supernatural movie for any anime fan.