In the deep palace of the Southern Dynasty, Nongmeizhuang, the daughter of a guilty minister, became a palace maid of the Huanyi Bureau. She only wanted to save money to redeem her life and reverse the case for her father. Wanshou San, the eunuch who was the eunuch of the Ministry of Internal Affairs, was burdened with the secret of an old favor and only wanted to protect her old friend's young son and leave the palace safely. An ink-splattered first encounter brought two people with very different identities together. The harem was strife and powerful ministers were in trouble. He shielded her from punishment and risked collaborating with the enemy. She handed him a life-saving token and gave up her obsession with overturning the case. The wisteria flowers blooming and falling in the west corridor of the imperial garden hide the restrained heartbeat of the two people; the life and death agreement inside and outside the prison is tied to each other's salvation. When power and emotion collide, can they break free from the shackles of their identities as "eunuchs and maids" and exchange their lives for a simple life in the Jiangnan water town in the name of fake death?