At the end of the Eastern Han Dynasty, there was a rumor circulating among the people. If you encounter a breathtakingly beautiful woman in her prime and a handsome fifteen-year-old boy, you must offer them assistance. The boy's few words, which seem to 'leak heavenly secrets,' will surely change your life. The handsome boy is known as 'Hidden麟'... In the third year of the Chuping era, the last issue of the Runan Monthly Review left this message: 'He who obtains the 'Hidden麟' can end the chaos and dominate the world.' Who is the Hidden麟? Where is the Hidden麟? ...