【Hermits】come from the meaning of being hidden in the city. They are the “people” who exist in this busy city but hard to be noticed and remembered by others. They strictly comply with the 《Hermits’ Code》, following the trails of those who are suicidal, and signing lifespan donation agreements with them to retrieve the lives that they don’t want. Dr. Xu Shu, who regards life as the most important of all, accidentally broke into the world of Hermits. He swore to himself that he will track her and intervene in the suicide attempt of the other contractual party who wants to sign the agreement. After experiencing a series of helpless and sorrowful human affairs, the relationship between Hermit No. 1866 and Xu Shu has started to change……