Help! This Savior Is Too Old!

With his spiritual energy revived, Jiang Bai unexpectedly came to the fifth mysterious tide era. Everything he was familiar with had passed away over the years. The sea had changed, things and people had changed, the career he had worked hard for had all come to nothing, and the past could not be recalled. In this era of chaos and darkness, order has long since collapsed, civilization no longer exists, and the shadow of death hangs over everyone. In addition to surviving, Jiang Bai also has a task to complete. "Task number 002." "Task code name Cicada." "Task content to save all mankind." "Task executor Jiang Bai." "Task in progress."