Devil's Lover is an animated work made in Japan. The third season has been shown in Japan, but China has not introduced the film, so it is impossible to watch the third season in China.
Devil's Lover is a very popular Japanese animation, which tells the story of a mysterious ceremony that unexpectedly summons Wang Weilian, the prince of the underworld, and is accepted as a member of the family by Ito Sakura, the last heir of the Ito family, and called as one of the contestants in the battle for the throne of Ito's successor. In order to become an heir and return to the underworld, William cooperated with Ito Sakura.