My Diary of Raising a Demon King

Being a good spirit is a thankless job. I blocked a heavenly tribulation for someone—died three times. Helped a guy find his soulmate—nearly got obliterated. Comforted a crying girl—turns out she's obsessed with a wife-murdering maniac. Tried to repay a life debt, and now he wants to marry me?! Enough is enough! Time to switch to my main account and show them what this spirit is really made of. And you—yes, you, immortal lord who clings to me like a stubborn curse I can't shake—care to explain yourself?