Shàng Lán., the weakest recruit in the United Human Army, was supposed to die on the battlefield. In his near-death state, he made a pact with the King of the Boundary Ghosts. Nosferatu, allowing it to reside within him. Through this contract, the more Lán dies, the more he assimilates with the Immortal Demon, continuously enhancing his physical abilities. Unknowingly, Lán comes to be known as the “Grim Reaper,” feared by all. Nevertheless, for the sake of humanity, Lán resolutely charges alone towards the Boundary Ghosts—