Woo-seung prevents Hyun-jae from leaving her behind by making him spend the night on her apartment. The following day, Hyun-jae confronts Young-jae to confess about his disappearance and later uncovers the truth about it from someone else. After finding a way to return to the past, he becomes conflicted as staying with Woo-seung in the present would prevent Ji-hoon from being born. Meanwhile, MJ wants to reveal the truth about his songs to the public before Young-jae does. (thetvdb.com)