Zhou Wenchu opened a bar where memories can be exchanged. As long as guests drink a special cocktail, they can exchange a memory for an experience in another time and space.
Until one day, a woman wearing a cheongsam walked in and handed him a pawn ticket from 1943: "This is the betrothal gift you gave me back then. You said you would come back and marry me."
Zhou Wenchu looked at the handwriting written by himself on the back of the pawn ticket, and suddenly remembered that in war-torn Shanghai a hundred years ago, he did love a woman named Su Wan.
And she seemed to have never left this time and space.
Purpose: Fateful marriage