The Sequel to Laojiumen: the Reunion of the Nine Gates

People from nine sects went on an underground adventure together. An unsolved case of the mysterious disappearance of the 401 Troops has revealed shocking secrets in a secluded building that have been hidden for hundreds of years. The choice of life and death lies on the road ahead, and old grudges, brotherhood, sect disputes and the righteousness of family and country are entangled with each other. The people of the Nine Sects go deep into the mysterious underground passages of time and space, face the illusion of Yin soldiers and numerous mechanisms, face fate with passion, protect their homeland with choices, and go through hardships and dangers to overcome the difficulties of life and death together.