"I will do everything in my power to make your life peaceful and happy!"
"That's it? What about my next life? What about the next life?!"
"I will stay with you forever!"
… …
"Obviously I promised her to protect her and pamper her to be happy all her life, but she caused her brother to die miserably and commit suicide... I am the one who has caused her trouble in this life... Let me stay with her, at least let me stay with her for the rest of my life..."
Fifteen hundred years later, after the eldest lady of the Yang family put the ring on her finger, she had a vague dream that night. In the dream, a young man in white smiled gently at her and told her, don't worry, he will protect her in this life.