National Ghost Control: My Ghosts Can Be Upgraded

The world has entered the era of ghost control! Everyone can have a ghost of their own! In this world, once people reach adulthood, they can open the ghost realm and go to the ghost world, find their own ghosts, and sign contracts! It doesn't matter if you don't sign a suitable ghost in the ghost world. As long as you have enough money, you can still buy powerful ghosts and sign a contract! Wang Ling, a disciple from a wealthy family... Not only did he successfully sign a contract with a powerful ghost, he discovered that he actually possessed the rare talent skill "Swallowing Domain"! Very few people can awaken special talents With this field, ghosts can actually eat other ghosts to further evolve and upgrade! The division of strength between ghost masters and ghosts: "Apprentice of a ghost master - half-ghost, first level - little ghost, second level - fierce ghost, third level - vampire, fourth level - corpse ghost, fifth level - heavenly ghost, sixth level - ghost general, seventh level - ghost commander, eighth level - ghost king, ninth level - ghost lord"! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.