In Chicago, Ange Tomassini leads an almost ordinary teenage life until he discovers that he is connected to a mysterious tiger-man who appears whenever he is in danger. The truth is even stranger: Ange belongs to the Dizhis, beings capable of taking the form of animals from the Chinese zodiac. With his father at the head of a powerful criminal organization, the teenager is quickly caught between family secrets, struggles for power, and other Dizhis seeking to claim his abilities. With the help of his bodyguard Dan, Ange must learn to control his heritage while deciding what he truly wants to do with the power he has inherited.