The Demon King Sent Me to Repay a Favor

This is a story about a monster repaying a debt of gratitude! Also known as Everyone, Come Repay Your Debts, It's Not Easy for Monsters to Repay a Debt, Mortals Are Fierce, So Be Careful When Repaying a Debt, Monster King, Stop Setting Up Other Monsters, Repaying Debts Is Such a Pain, and Extra, Extra! Another Unlucky Monster Is Off to Repay a Debt! Please follow my author page! Brainstorming addict, Mu Xiuqiu