The behind the scene gives us a peak of how the choreography was learn and perfected by the group thanks to choreographer Lee, who guided each member to perfect synchronization. It’s one of the most popular content so far, since it gives not only an opportunity to see how far the septet has come, but also the impression of being in the practice room and being part of the progress in a very casual way. High quality, meticulously produced content is always welcomed, but there’s something about more casual settings. Not worse at all, but it provides a valuable source of familiarity. Let me explain. Seeing a group perform will always be thrilling. But seeing them joke around, get to know their little daily struggles, small achievements or inside jokes let us know about the person, and it hits different.