Gu Tong, a modern criminal investigation genius, accidentally traveled to the Tang Dynasty during a mission. At this time, the Tang Dynasty was in a prosperous period, but undercurrents were surging and various strange cases occurred frequently. Gu Tong relied on his modern criminal investigation knowledge and wisdom to embark on a thrilling journey of solving crimes in the Tang Dynasty. Gu Tong: The protagonist of this story is a modern criminal investigation genius who traveled to the Tang Dynasty. He has a calm and wise personality, quick thinking, and a sense of justice. He is not familiar with various ancient rules and etiquette, but he has established a foothold in the Tang Dynasty by virtue of his own abilities. Li Yifeng: A member of the royal family of the Tang Dynasty, he was talented and personable. He admired Gu Tong's criminal investigation ability and became an important helper to Gu Tong in the Tang Dynasty. The two formed a deep friendship. Liu Ruyan: A famous talented woman in Chang'an City. She is not only proficient in poetry and poetry, but also has unique insights into cases. She got to know Gu Tong in many cases and gradually fell in love with her. Wu Zetian: The actual ruler of the Tang Dynasty, wise, courageous, and rich in political skills. Appreciating Gu Tong's talent, he has repeatedly used Gu Tong's ability to solve some difficult cases and consolidate his rule.
