Sera is on vacation in Korea when she is almost hit by a car. Jungkook saves her and likes her at first sight. Sera's memory is lost after the incident and, under BTS's pleading, she gets to live with them. V is reminded of his dead sister. The rest of BTS is just happy to be living with a pretty girl. When feelings start to blossom, she will have to make her choice. But when her memory returns, how much is she willing to sacrifice for true love?