Due to a sudden surge in global population and dwindling resources, individuals are now restricted to a maximum lifespan of 75 years. Zhang Yi, notorious in his school for his malevolent ways, endeavors to assist his grandfather in evading the compulsory demise. However, a startling revelation unfolds as he inadvertently stumbles upon the reason behind the mandatory death law - a concealed truth that humanity cannot fathom. As a result, Zhang Yi's life begins to intersect with an assortment of unknown entities and individuals. With each passing day, he is gradually exposed to the veracity of the world.