Mystery of Kunlun

Twenty years ago, an expedition ventured deep into the Kunlun Mountains and never returned. Twenty years later, among the belongings of my long-missing parents, I discovered a secret record about Kunlun. According to legend, the gods of ancient times were born there. Why was an ancient corpse in a coffin from a thousand years ago marked with a symbol from the future? What secrets lie hidden in the mysterious ruins of ancient Kunlun?