- 1 Season
Senyu begins one millennium ago as a Demon King continues to sow chaos and strife among the many residents of the world of humans. However, his rule was eventually ended after a legendary hero managed to seal him away. The series then jumps to the present day, with a large gaping hole manifesting and releasing countless batches of the Demon King's infernal servants. The King decrees that the 75 likely descendants of the Millennial Hero are to vanquish the demonic incursions and otherwise save the planet. Out of the 75 different heroes, Senyu's storyline focus on hero #45, Alba. Along for the ride is Ros, a soldier and comedic sidekick to Alba. Senyu is a 13 episode fantasy-action comedy anime series. Additionally, the series received a second season, labeled as "Senyu 2." Both seasons of Senyu feature the talents of such seasoned voice actors as Hiro Shimono, Ai Kayano, and Jouji Nakata. Furthermore, each season is written, directed, and produced by the same three individuals; Michiko Yokote, Yutaka Yamamoto, and Akira Sasaki, respectively.