I, the Corpse Breeder, Start with a Contract with the Tyrant Coffin Spirit

[Coffin Keeper + Pet Coffin Spirit + System + Supernatural Power + Cool Writing + Decisive Killing] Ye Mo traveled to a parallel world that merged with countless terrifying cemetery secrets. Here, evil monsters such as demons, monsters, undead, ghosts, zombies, and ferocious beasts are rampant. After humans awaken their talents, they can contract monsters in coffins to fight, and are called coffin keepers. However, when Ye Mo awakened his talent as a corpse servant at the beginning, he could only contract the most recognized weakest and most flawed race, the corpse clan! Until he obtained the strongest corpse-raising system, everything changed... Ye Mo: "The devil is the strongest? The corpse clan is the weakest?" Ye Mo: "Let's fight!" "Zombie [Tyrant T002] evolves into [Blade Tyrant], the ultimate evolution route is [God Terminator]" "Zombie [Flying Zombie Girl] evolves into [Unbreakable Bones], the ultimate evolution route is [Heavenly Zombie Emperor Daughter]" "Zombie [Zombie Matrix] evolves into [White-haired Zombie King], the ultimate evolution route is [Immortal Zombie Demon]" "Zombie [Mutated Nurse Zombie] Evolved [Bloody Queen]" [Millennium Corpse King], eventually evolved into [Zombie True Ancestor], [Undead Corpse General], eventually evolves into [Zombie True Ancestor] [Corpse Dragon], eventually evolves into [Starry Sky Dead Dragon]...