Su Lin, who returned from cultivating immortality, concealed his identity and became a househusband for love, but was rejected by his wife Yin Qingya for being "unmotivated" and divorced in public. He relied on his incredible medical skills to distinguish truth from falsehoods, uncover conspiracies, punish villains with thunderous means, and protect relatives and friends. He even stirred up troubles in the city and made his ex-wife repent. When ancient martial arts masters, mysterious organizations, and aristocratic families from the capital came to visit him, he discovered that the water in this city was far deeper than the fairyland.
