This work is set against the backdrop of the disputes between the three realms of immortals, demons, and mortals in the Mysterious World. It revolves around the bond between the useless beast master Lu Li and the ancient ferret demon king Xueyao. Yao's true identity and secret, while hiding his identity as the demon king and continuing to call him Bai Huahua, while coaxing him with sweets and gentle pets, the two uncovered the mystery of each other's life experience on the way to upgrade - Lu Li is a descendant of the ancient guardian of the spiritual veins, and Xue Yao is an ancient demon king who was framed and sealed by the traitors of the fairy world and the demon clan. Their past bonds spanned thousands of years. The story is intertwined with the upgrade line, love line, and life experience line, connecting the core plots of secret realm exploration, fairy and demon confrontation, and spiritual vein protection, highlighting the cute contrast between Lu Li, a madman who protects his wife, and Xue Yao, an arrogant and jealous person. In the end, the two work together to reveal the truth, defeat the villain, overturn the hypocritical order in the world of immortals and monsters, protect the balance of spiritual veins, and stay together for a lifetime.
