Grandpa Rebelled in the Underworld and Used Me to Pay Off Debts

"My dear grandson, grandpa is rebelling in the underworld. Money is a little tight recently, so he has no choice but to mortgage you." "Don't worry, grandpa has made an agreement with the creditor. You don't have to come down, just pay the debt up there!" Recently, Zhang Yuan keeps receiving dreams from his grandfather! I learned from my dream that my grandfather was rebelling in the underworld, and that King Yama took turns to do it, and he came to my house this year! I was just short of some activity funds, so I had an idea and mortgaged him out. "Won't your conscience hurt if you cheat your grandson like this?" "You didn't let me go down, you are really my grandfather!" A Taoist priest came, claiming to be a creditor, and asked him to inherit the position of Tianshi of Longhu Mountain. "Ding, the Celestial Master system has arrived in your account, and you have obtained the Celestial Master's Degree!" Oops, it seems like something happened! "Grandpa, you work hard down there, and I'll help you get sponsorship and reinforcements!" "My dear grandson is so considerate, come, come, come give you some good things..." As a result, Zhang Yuan killed the evil ghosts in the world, developed followers, and asked their ancestors to join his grandfather's rebel army... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.