Born into the world in the womb, Murong Yu arrives in a vast cultivation realm divided among three worlds, restarting his path to immortality from a mortal family.
At six, a spiritual-root test reveals that he has a water-type Heavenly Spirit Root, one in ten thousand, and awakens a Pure Yin Sacred Body of utmost purity. His aura stirs the Pure Yang Sacred Body of the crown prince, Shangguan Yang.
The heaven-blessed Shangguan Yang relentlessly pursues him, showering him with affection, but Murong Yu remains cold and wary. He is convinced the other man only wants to use their complementary Sacred Bodies to cultivate.
Only after they depend on each other for survival during a perilous secret-realm expedition, and join forces against a murderous assault by demonic cultivators, do their repeated acts of trust finally melt away their layers of misunderstanding. The Pure Yin and Pure Yang Sacred Bodies go from mutual suspicion to choosing each other wholeheartedly.
From Qi Refining and Foundation Establishment to ascending as immortals, from Earthly Immortal Venerables to the imperial realm of the gods, the two fight side by side through every obstacle and shatter the heavens. Across the Three Realms and Six Paths, they write an epic romance in which their Sacred Bodies rely on one another and immortals and gods return together.