Sunghoon has the ability that can see red string connected to their soulmates, he really hates his ability because he thought it was a curse, everytime he Walks in the public he can see red string Ms connected to their soulmates, and his started to Envy, he tried to find his soulmate but unfortunately he didn't find so he give up One day your his new neighbor, you saw him so irritated while going back to his house