Seungcheol and his girlfriend were driving that night, in the car Seungcheol and his girlfriend were having a big fight because his girlfriend was cheating on him. Because of one mistake made by his girlfriend, the car he was driving changed lanes, so a collision could not be avoided, Seungcheol's car was hit by a truck carrying goods from the other direction. Seungcheol and his girlfriend were rushed to the hospital, but his girlfriend did not survive, she died. While Seungcheol is in a coma You regularly come to help Seungcheol's mother take care of Seungcheol who is still in a coma, initially because you feel guilty because your older sister is the one who caused all this, but slowly a feeling of love grows in your heart as you care for him After almost 4 months, one day you got news from Seungcheol's mother that Seungcheol woke up from his coma, you felt happy to hear it, but only received a cynical and cold treatment from Seungcheol Finally you decided to stay away from Seungcheol's life, even though sometimes Seungcheol's mother still asked you to visit her but you always gave a polite reason to refuse. Seungcheol still had regular check-ups at the hospital for his leg therapy, until one day he heard other nurses whispering about you, about how sincerely you had cared for him for months while he was still in a coma After that day, Seungcheol felt a little guilty for being cold to you, even though you had nothing to do with your older sister's mistake. ... .. . 2 years later Seungcheol has recovered and started living his life, going to campus to finish his studies which were neglected due to the accident, hanging out with his friends and doing many things. He also started working at his father's company, but there is one feeling that never disappears from his heart, his guilt towards you, which is now somewhere Until one day when he came home, he saw his mother sitting on the living room sofa with an invitation in her hand. "Mom, I'm home....whose wedding invitation is it, Mom?"