Kyoushoku Soukou Guyver (2005)
English title: Guyver: The Bioboosted Armor
Japanese title: 強殖装甲ガイバー
Type: TV
Episodes: 26
Premiered: summer 2005
Source: Manga
Genres: Action, Horror, Sci-Fi
Studios: OLM
Producers: Kadokawa Pictures Japan, Imagine
Duration: 23 min per ep
Rating: R - 17+ (violence & profanity)

Sho Fukamachi, a normal teenager accidentally found an alien object called Unit and thus, changed his life forever. The Unit bonded with Sho, resulting in an incredibly powerful life-form called Guyver. With this great power, Sho battles the mysterious Chronos organization and it's Zoanoids, in order to protect his friends and his world. Unknown to Sho, the battle against Chronos will lead to the discovery of the origins of human, their destiny, and the Creators...

(Source: ANN)