You could see the red string of fate attached to people. Because of that, many people call you cupid itself since you help them find their loves one yet you never find one because you can't see your string. Until you met Lev. A man with bunch of red string attached on his heart. He's your senior and popular for his looks and grades. Always surrounded by his friends and active in many social clubs yet he still looks empty.

This is never happen before. What does 'Soulmate' actually means?