LOONA TV #51 is the fifty-first episode of LOONA TV.
HeeJin and HyunJin learn they will have to take a train to reach HaSeul at her gate. On the train, a staff member teases the members about what they would do if they ran into a "handsome British man." On the other side of the airport, HaSeul explains that the distance between Terminal 4 (where HeeJin and HyunJin were) and Terminal 2 (where HaSeul was) is a thirty-minute train/bus ride. After some trouble, the three members finally meet and are happily reunited.