Imaginary Dragon Bruno, in the original game world, was a rarely seen scholar-type demigod who was rather friendly to players.
Often, he issued a variety of quests to players, most of which were difficult to complete; however, the rewards for completing them were quite substantial. Hence, as a quest-giving NPC, he was quite well-known among players.
Involving matters related to Emperor Otto, Aske had no concrete evidence, but he still tended to believe that the Dragon of Imagination was not the real mastermind behind it all.
The reason was simple; it was too easy to guess.
If the quest involving Emperor Otto was made public, out of ten thousand players planning to undertake the quest, nine thousand nine hundred ninety-nine would suspect Bruno at first thought.
In such a case, if the real mastermind behind it all were indeed Bruno, everyone would feel that the quest was too simple and begin to complain that the planners had not put enough thought into it.