Searching for Immortals in the East China Sea

What kind of medicine did the First Emperor want most? The medicine of longevity is too general. It might be a medicine that even he himself did not understand. It was not only Xu Fu who went to sea to seek immortality, but also Han Zhong. In the vast East China Sea, traces of immortality are elusive. There have been legends for thousands of years, but almost no one has seen the immortal mountain again. The road to find immortality is like searching for a needle in the sea, with no end in sight. A man who claimed to have seen gods at sea gave him a glimmer of hope. After analyzing layers of clues, he found the Immortal Island and went to the island to visit the Immortal with piety. The result was beyond everyone's expectation.