The Underworld Sable Envoy: I Cultivate Immortality at the Department of Spiritual Investigation

In Linzhi, a spiritual realm has appeared, and otherworldly creatures are rampaging. Su Nianyang of the Spirit Investigation Bureau confronts the eerie phenomena of the snowy region, investigating and containing them amidst isolation and life-or-death situations, uncovering the deep secrets of the Tibetan supernatural and the Spirit Investigation Bureau.