Well, the roles were described in full and with great detail, because it was impossible to hide them due to certain features. And since it couldn't be hidden, I put all my effort into elaborate writing. Moreover, the setting itself encourages this; you can describe battles there. Here, of course, the teams are also understandable, but not everyone understands the hints about the role.
If the setting were easier, I would write descriptions like Plesen or Revan.
Or are you talking about displaying NDs and not revealing the plot? I had an idea to write an introduction about one of the characters at the beginning of each newspaper, but it didn't work out. I tried writing about mana on the 2nd day.
Where do we end up when we save the world?