Liu Zhi is a male syndrigast with the peculiarity of irreversibly turning into an island. His son has the same peculiarity as him.
He is only mentioned in the Tales of the Peculiar.
When his son was young, Liu Zhi left him to find an island called 'Cocobolo'. It is later revealed that Liu Zhi is none other than the island, as he was slowly turning into one throughout the years. Before he left his son, he warned him that one day, Zheng would 'suffer' a similar fate. Upon meeting his son many years later, when Zheng decided to find 'Cocobolo', Liu Zhi requested that Zheng stayed with him. Zheng became outraged and left the island, and decided to estrange his father.