Writing off the story with TXT members as the mains and while interpreting my own +U (TXT Universe) theory. Dragons & Dungeons vibes.
Everyone has a secret no matter how big or small it is. To some, it can be considered very important while some think that their secret is not that big of a deal and decided to just shrug it off.
The story is about how 5 members of TXT finally knows a special little secret that each of them had and how the game that they played during childhood came alive in the real world.