At the beginning of spring, everything happens. Kyoto was originally a prosperous place, but now it is particularly desolate. There are often armies in armor coming and going on the streets. Most people know that the former king died and the prince passed away. It is the former king who inherits the throne. His seventh son, Xuan Guang, only a few people know that during this change, some people have become generals, some have fallen into hell, and some are living a life of suffering, not knowing what is waiting for them.