I am willing to bet on love with Yue Lao for three lifetimes at the cost of my soul. I bet that I, Yaner, can finally win your heart and live happily ever after.
If I win the bet, I can win the red thread from Yue Lao and tie a happy next life for both of us.
I lose the bet, if I still can't get your heart after spending three lifetimes, then I'm willing to suffer eighteen levels of hell just to get to see you again.