Su Yining couldn't let go of the death of her first love. She locked herself in her own world, not letting anyone in, and she couldn't get out. Until she meets Rongruo, the person who is as stubborn as her. It was his persistence that allowed Yi Ning to return to the world from the Age of No Love.
"Time will slowly settle, and memories will slowly fade. I will always be by your side. I don't ask you to love me. I just ask you to open your heart, see the world, and learn to let go. Your happiness requires your own fulfillment."
"Lift me into you world and let me have the freedom gladly to lose my all" Yi Ning, extradite me into your world, I will happily lose all my freedom.