City: After Ten Years of Cultivating Immortality, You Will Become Invincible When You Come Down from the Mountain.

[Invincible+Shuangwen+Master coming down the mountain+cultivating immortality] Ten years ago, he was taken up the mountain by the old Taoist. With the talents of heaven and man, he achieved unparalleled abilities. Ten years later, the old way changed, and Qin Yu came down from the mountain and returned to the city. Once he was born, he killed all the people in the world who refused to obey.