You Will Be My Wife

Three years ago, when he met her in a foreign country, he was 23 years old and she was already 28 years old. At that time, he had his own confidante, and she also had her own boyfriend, but fate is sometimes so strange. People who were supposed to be on parallel lines became entangled because of "a mistake", and they also lost contact because of "this mistake"... Three years later, when they meet again, how will their fates intertwine?