Reborn in an immortal-demonic world torn by the conflict between good and evil, Song Yan was abducted into the Puppet Sect of the Demonic Sect. Due to his mediocre talent, he was assigned to work as a menial laborer responsible for leather crafting. The Dao of Puppetry is profound and extensive, encompassing shadow puppets, paper puppets, and blood corpse puppets. Song Yan was required to craft suitable shadow puppet humans, shadow puppet beasts, and even shadow puppet buildings in accordance with the standards set for official disciples. During a leather-crafting session, a system unexpectedly awakened within him—every time he engaged in leather crafting, his lifespan and comprehension ability would improve. As time flew by, when he looked back, Song Yan had grown into a powerful leader of the Demonic Sect. He had witnessed ten thousand years of time pass and beheld the rise and fall of realms across the world.