The Spread Shot of Nue Houjuu, who has almost reached the end (a Touhou LW original). An unknown attack. There seems to be some kind of Hakurei Shrine Maiden Factor. The details are unclear, but it has been observed in a number of different individuals. Nue Houjuu also possesses this factor, as the true identities of the previous Hakurei shrine maidens are shrouded in mystery.

The Focus Shot of Nue Houjuu, who has almost reached the end (a Touhou LW original). An unknown attack. It also isn't clear why the Hakurei Shrine Maiden Factor exists. But it definitely does. Perhaps the most telling example other than Nue is Flandre Scarlet. Destruction is the incredibly powerful thread tying all those who possess the Hakurei Shrine Maiden Factor together. However, this factor isn't a physical thing. Nor is it mental. Even if Nue or Flan were right in front of you, you wouldn't be able to detect it. It doesn't exist on the physical or mental layer, so it must invariably be of the memory layer.

A Spell Card of Nue Houjuu, who has almost reached the end (a Touhou LW original). An unknown attack. The nue youkai is sometimes called a chimera, a fantastical creature that combines parts of different animals. Some are depicted as part-monkey, part-tanuki, part-tiger, and part-snake, though there are many other combinations. However, if you simply said that's the kind of youkai a nue is, then it would no longer be unknown. Thus, these depictions cannot be what a nue actually looks like.

A Spell Card of Nue Houjuu, who has almost reached the end (a Touhou LW original). An unknown attack. Time for a riddle. You see four animals before you: a monkey, a tanuki, a tiger, and a snake. How many creatures are there?

The Last Word of Nue Houjuu, who has almost reached the end (a Touhou LW original). An unknown attack. A suspect never shown, a victim whose identity is never revealed. These are classic―some would say overused―tricks employed by detective novels. The answer is five. In the spot where there is only supposed to be a monkey, a tanuki, a tiger, and a snake, there is also a nue. If you only look at the monkey, then that is all you will see. However, if you look at the monkey's face, the tanuki's body, the tiger's limbs, and the snake's tail... a nue will appear. You'll hear the cry of a scaly thrush. "Hyooo, hyooo." And you'll be rewarded with the Shishiou sword and the Ranjatai incense. "The Hakurei Shrine Maiden Factor, huh...? Does such a thing really exist?"