Zhang Ling, an explorer turned extreme athlete, accidentally angered a mountain ghost while tracking a missing archaeological team in the Yunnan rainforest. When he was about to die, he awakened the "Yin Yang Eyes" skill point system - for each supernatural incident he solved, he could obtain skill points to strengthen the Yin Yang Eyes (night vision, ghost whispering, causal regression, etc.). He was thus involved in the supernatural whirlpool caused by the "Nine Gate Secrets", and cooperated with the mysterious woman Gu Jiuniang (whose true identity is the secret keeper who guards the thousand-year cause and effect). From the ancient wilderness village to the ghost ship on the sea, from the ancient mountain temple to the underground restricted area, he solved the deadly mystery while uncovering the fateful relationship between the "yin and yang eyes" and the "Nine Gate Secrets". Finally, he faced the laws of heaven in the ultimate secret realm and rewrote his fate with Gu Jiuniang. The exciting points are concentrated in: high IQ puzzle solving to counter-kill supernatural beings, step-by-step strengthening of yin and yang eye skills, the ambiguous relationship between Gu Jiuniang and Gu Jiuniang, and the reversal of the core supernatural events in each volume.
