As six brothers of the same kind, they watched the birth and death of generations with nothing to do. They took the "exam" every fifty years. If they failed, they would take a rest for fifty years and take it again. Those who passed could live forever as they wished. Six people with different personalities, going to different time and space, what experiences will each have? Let's visit them one by one.
Yin Tianyou, represents the peaceful moon, but possesses the brilliance of the sun. He always has a gentle smile, but he uses his smile to isolate people other than his brothers. How will he change in this "examination"?