There is a saying that if lovers tie their loves at Dolphin Bay, their loves will always be protected by the dolphins, who bite their copper ring, their love will stay forever.

The story begins with the meeting between Xiao Ze Ya with a stupid girl who doesn't know her own name. She then was called 'Bottle Lid' in Saint Jose orphanage home. This little Bottle Lid is always being teased and laughed at by others. Ze ya feels that this is not fair and decides to protect Bottle Lid. A few years gone by, they are separated. Bottle Lid is now an adult and her name is Jian Bian. She follows Hui Lan and helps with Hui Lan's noodle shop. Ze Ya who just came back from England, found Saint Jose, but now everything changes. When Jian Bian appears before him, he doesn't remember this Bottle Lid girl anymore. How could their love relationship continue again? Could Ze Ya fulfill his promise with Jian Bian at the Dolphin Bay?