Daesung has been alive for many years and has witnessed how the world has changed. How people changed every year.

Each person has a red string attached to their pinkies, and it connects to the other person—their soulmates. But it’s invisible, and they aren’t able to see that red string except for Daesung. His own string is not attached to someone until one day he sees you. His eyes widen, and his heart beats fast.

He finally found his soulmate. His string is attached to yours.