7th century

When the future empress Wu Zetian's two courtiers die in a mysterious fire, she gets Di Renjie, a former detective and rebel, released from prison to solve the mystery of the fire.

Kingdom of Goguryeo, ancient Korea, 645. The ruthless Emperor Taizong of Tang invades the country and leads his armies towards the capital, achieving one victory after another, but on ...

Dee, the detective serving Chinese empress Wu Zetian, is called upon to investigate a series of strange events in Loyang, including the appearance of mysterious warriors wearing Chiyou ...