The first "Tian Tong Empire", Wuhou has ascended the throne, and Di Renjie is responsible for finding out the murderer who tried to threaten Wu Zetian behind the unsolved case. The timeline happened in Four Kings eight years ago.
In the second book "The Dragon King of the Gods", Di Renjie is a teenager. He was appreciated by Emperor Gaozong for cracking the case of the Dragon King of the Gods and got a dragon scepter.
In the third film "Four Heavenly Kings", Wu Zetian decided to destroy Emperor Renjie because he got the mace of Kang Long, which became an obstacle for him to reach the peak of power. Di Renjie turned to the monk of Sanzang Temple for help. With the invincible illusion-breaking function of Kanglong Mace, we joined hands with Jinwei and Dali Temple, and finally defeated the enemy.
Di Renjie actor Andy Lau:
A famous detective in the Tang dynasty, both civil and military. Kung fu is high, but he doesn't like killing people. Even his martial arts are mainly dodge. Emotional, compassionate and affectionate, but not a playboy. He has super keen observation, and can judge whether a person is lying by the conscious gestures and subtle expressions on his face when others speak.
Although he is smart, knowledgeable, educated and martial, his character is not without edges and corners. He is an ancient detective, but he is very modern. His temperament can't get rid of "unruly", but he can ride his horse in an emergency and return home at a fixed time.
"I don't like things, I don't like myself", and I hide my inner world very well, but Wu Zetian can understand him and Shangguan Jinger understands him. Being ordered by Wu Zetian to investigate a shocking case, Shangguan Jinger and Wu Zetian have a subtle emotional relationship.