I just played the game and was thrown into a death instance called "Mirror Realm". The watcher can see through her position, the princess will open the door for the watcher, and the rules change every half hour. In the three-person camp, teammates fell one after another, and the only life-saving trump card was an eight-year-old girl.
Purpose: Everyone should take a look at Infinite Streaming more often. It is still very practical if you actually get through it.