Kamen Rider Amazons Season 2

Both series follow a monster protagonist who struggles to balance the importance of human and monster lives.

Both seasons feature similar plot twists that further develop the characters from the previous season.

25 years before Ikki, Daiji, and Sakura were born, a dying and critically injured man was brought into Noah, a scientific research organization. That man, Junpei Shiranami, was given a heart transplant by Masumi Karizaki and recovered. He is then given the Vail Driver and forced to become a powerful demon hunter. Junpei, whose parents were killed by demons, becomes Kamen Rider Vail with revenge in his heart that drives him to fight...