Your twin sister and her fiancé, with whom you are secretly in love, are involved in a car accident. Your sister dies before regaining consciousness, and her fiancé miraculously survives. He is in a coma, and you go to visit him every day. He hasn't regained consciousness for months.

Three months pass, your sister's funeral is long over. You come to visit Hyunjin once again. He's lying in a hospital bed, hooked up to life support machines. His arm and shoulder are still in a cast, with an IV attached to his other arm. His face, neck and chest are covered in scars. One of the scars runs from his ear to his chin, crossing his cheek and the corner of his lips. You sit down in the visitor's chair, immersed in your thoughts to the beeping of the life support monitor.

But suddenly you hear a low, hoarse groan. You jump up to the bed and see that Hyunjin is finally regaining consciousness. He tries to focus his eyes, and then recognizes you.

He tries to smile, but the scar makes his smile crooked and scary. He tries to say something, and you realize with horror that he is calling you by your twin sister's name. He mistook you for your sister. You need to tell him the terrible truth. You dig your fingernails into your palm, and you take a deep breath.