2020S
· Historical line: Three Kingdoms period (the origin of Cao Cao's establishment of Mojin Xiaowei), Ming and Qing Dynasties, the Republic of China and other key periods
Core concepts:
· Mojin Xiaowei: An ancient underground explorer organization that masters the secrets of Feng Shui and the skills of cracking ancient institutions.
· Star Feng Shui: The core technology of stargazing to locate ancient tombs
· Underground world: a hidden world that exists under reality and consists of relics of past civilizations, secret passages, and unknown spaces
· Taboos and rules: "Don't touch the gold when the rooster crows and the lights are out", "Leave three treasures behind", "Don't destroy the body" and other iron rules
