The Spread Shot of Eirin Yagokoro from the world of eternal night (a Touhou LW original). She summons destructive innovations in this attack. Although Eirin is a genius, she is not the kind of sage that just sits at home and doesn't act. This attack is the ultimate battle of wits that challenges the opponent to think empirically and logically. This challenge by a true sage also tests whether the opponent has the courage to take decisive action, like how Eirin fearlessly saved Kaguya. Shooting at the moon is a fool's act, but a sage can actually hit the moon. She may be an example of someone who has completely mastered the art of battles of bullets.

The Focus Shot of Eirin Yagokoro from the world of eternal night (a Touhou LW original). She manifests educational guidance in bullet form. This attack is essentially Eirin's instructional whip as a teacher of the moon. It is not exactly known what kind of mental process lunar thinking is, but Reisen Undongein Inaba seems to have mastered it. Although youkai are very different from humans, Lunarians are actually considered to be the most alien beings from humans. The more distant a lifeform is from humans, the more difficult it is for humans to guess their ecology and thoughts. This is because humans can only come up with ideas based on what they themselves have experienced.

A Spell Card of Eirin Yagokoro from the world of eternal night. This attack imitates the forbidden elixir. The fates of Eirin and Kaguya were drastically changed when Eirin created the Hourai Elixir with Kaguya's ability. Whoever consumes the elixir will become a person of Hourai, a being with true immortality that can never perish. In return, they will become impure and can no longer live on the moon. The name "Hourai Elixir" could mean a "medicine from Hourai," but it is also possible that Eirin just named it after Kaguya. If Kaguya could make a medicine of immortality, all the authorities on Earth would surely fight over her. Still, Kaguya would probably reject everyone and continue to be an anti-Cinderella... But the real question is, how does this medicine taste? Is it bitter?

A Spell Card of Eirin Yagokoro from the world of eternal night. She creates a starry sky within a jar that has no inside or outside. This sealed area without boundaries is Eirin's secret technique that completely separates the moon and the Earth forever. Her pupil and the greater youkai, who rely on boundaries to travel between the moon and the Earth, will probably struggle to use their abilities if Eirin uses this attack. It is similar to a black hole, without a doubt.

The Last Word of Eirin Yagokoro from the world of eternal night (a Touhou LW original). This attack differs from the original because it was merged with her spell, which creates a sealed room. She uses multiple surveillance networks to observe the moon and the Earth. They are said to be set up somewhere between the moon and the Earth, somewhere that can never be identified since the boundary between them has been erased. This place could be in the Dream World or another dimension. The only thing that is certain is that this is the Net of Eternal Wisdom that Eirin created to protect the princess and Eientei for eternity.