Madan Senki Ryukendo(2006)

Madan Senki Ryukendo is a Japanese action series set in Akebono City, where a mystical Power Spot has drawn the attention of the demon army Jamanga. These dark forces harvest Minus Energy from frightened citizens for their own purposes. To counter the threat, the secret organization S.O.T. operates undercover within the local police department. Kenji Narukami, a martial artist trained in the Narukami Dragon God Style, arrives in the city seeking combat with demons. When he transforms into RyuKendo, he joins forces with his friends to battle Jamanga's minions and protect the community from supernatural danger.