"It was my mistake that I never said I loved you and treasured you, But It was never a mistake loving you" Lovelyz is a new girl group at Wollim Entertainment. They have 8 members and all of them are basically like family. The strong bond between the members and the trust they have for each other are the things that help them to debut. But, what will happen when this 8 girls, travel back in time when they have never meet each other? The story takes part during their trainee years and how they gain the strong bond and true love. While the hard work is on, so does the fateful meeting with their Mr.Right. Their sunbaenims, the knife-like choreography, the beautiful voice of the vocalist and the strong raps by the rappers. Also, their unquestionable visuals that drawn everyone's attention. Only Bangtan Boys suit all of that. So, what do you think will happen?