Shen Yu and Ye Jin have known each other since childhood. The former is sentimental and unlucky, while the latter is romantic and ungrateful. They once slept together in the flower streets and willow alleys, woke up in the same woman's bed, and once fought over the heart of a beautiful woman - of course they would soon reconcile. Commander Shen's young master and Master Ye's youngest son, their friendship is based on a woman's soft lips and white lotus arms. They originally thought they would spend the rest of their lives together with each other. Until the Ye family lost power overnight, Master Ye was shot to death by his enemies. Although Ye Jin escaped death, he became an idiot because of being hit on the head by the murderer. Shen Yu had no choice but to take Ye Jin, who had lost his shelter, with him. After all, friends had to be morally responsible. However, this friend who had lost his mind caused his life to deviate from its original track.