In this universe, Heaven consists of four tiers. To ascend, one must accumulate Merits during their time in the mortal world. However, the merits of a single life are insufficient. An individual must go through countless cycles of reincarnation, performing good deeds in each lifetime. For most people, this might seem manageable since they do not remember their past lives. Unfortunately, Mujun was not so lucky. He could recall every detail of his previous lives—including the painful truth that only through merits could he ascend to the next tier of Heaven. As a result, Mujun was forced to live life after life as a kind and selfless person. But being good was far more exhausting, monotonous, and infuriating than being bad. After millions of lifetimes, he grew weary, bored, and deeply lonely. His resolve to reach the highest tier of Heaven—and discover what lies beyond it—began to wane. Worse still, Mujun started to realize how unique and isolated he was. There was no one truly like him. Until one day, in the depths of despair, Mujun made a decision that would alter the fate of countless innocent beings and shatter a boundless, peaceful world. "Why don’t I try to find my own companion? And if I can’t find one, why not create one myself?" With that thought, a journey and a bloody battle involving seven "innocent" girls began—a tale known as the Brides War.