Your Highness, It's Time to Pay the Debt.

The fictional "Dasheng Dynasty" has a culture similar to the fusion period of the Tang and Song Dynasties. There is a special group of "Spiritual Contractors" - special humans who are born with the ability to form contracts with natural creatures such as flowers, birds, insects, and fish. The story mainly takes place in "Xiefangyuan" outside the capital. It is a royal summer palace on the surface, but in fact it is a secret institution that specializes in guarding dangerous spiritual beings. The garden is laid out according to the Nine Palaces and Bagua, and the five elements formation is hidden. Su Wanqing, a talented woman in trouble, was demoted to Xiefangyuan due to a family rebellion. She unexpectedly formed a contract with the ancient beast "Taotie Remnant Soul" and became the most dangerous Chaos Spirit Contractor.