You and Your Boyfriend, Yoon Jay both used to live a very happy relationship until his brother Siyeon came and troubled their happy life as a result you died, emotions taking over Jay, he killed Siyeon as well. However, After 6 yrs, When he was at a smoking area after a meeting with some investors. He had a stern look while admiring the night-sky when someone came and asked him for a smoke and he tossed two cigarette butts to their feet not knowing the person looks exactly like his love.