The choice of music, black silhouettes, and dynamic dragon following the player create a fascinating atmosphere. Unfortunately, even after reaching the "Unfortunately, this is all" room, I feel like I haven't understood the game's premise. My best guess is that the dragon's tail causes rooms to be reset, although I formed this theory only after a couple minutes of confusion about how the switches and gates worked.
There's a very interesting idea in here, and I hope to see a more developed map to support it.