Kazansei-jishin (a Touhou LW original) refers to earthquakes that occur in and around volcanic mountains. What would happen if this world's Satori had complete control over the Underworld through her Palace of the Earth Spirits...? Her temperament has almost no connection to the natural laws of Phases. For various reasons, she hasn't been exposed to sunlight for a long time, so she is effectively a youkai who is native to the Underworld. Heaven's light (Sun Essence, Moon Essence, and Star Essence) does not reach the depths of the Underworld. Former Hell is a part of the Underworld, which was originally a world of death. It is a classical other world where an ecosystem of new and different species was uniquely established. That is why this Satori Komeiji fundamentally loves new creatures (Wood Phase), but they are also her weakness.

The ability of Satori Komeiji from the buried city (a Touhou LW original). Unlike her original ability, this one has become laminated and made exceptional from countless embedded relics. This Satori Komeiji came from another world buried by layers upon layers of history. She is a satori, a type of mind-reading youkai described in various regional youkai tales and old natural history books. Satori youkai are born from the fear of not knowing what someone else is thinking, and their origins date back to the dawn of human civilization when social concepts such as private and communicated thoughts arose... In other words, these youkai came into being because it is impossible to read the human mind accurately. The Satori Komeijis of other worlds might be different, but the Satori of this world traces her roots as a youkai to this notion. It is scary to think that your mind is being read, even though you know that such a thing shouldn't be possible... The concept of privacy also exists for youkai. That is why satori youkai were particularly disliked even among all the other hated youkai. The Satori Komeiji of this world seems to have been especially sensitive to this fact. She should have entered Gensokyo and lived on the Youkai Mountain before descending to the Underworld. However, no matter how many times she tried, she always followed a direct path from the outside world to the Underworld. Somewhere along the line, she ended up starting from the very beginning in the Underworld. The period of her life above ground held no meaning to her. If she waited in the Underworld, Hell would eventually expand and then shrink on its own to become Former Hell. After that, she could keep acquiring new Hell raven and kasha pets to help her read the history recorded in the strata of the earth. ...But why did she want to read that history? Just as the future cannot be read accurately due to complex diverging destinies, the past wildly changes according to interpretations of history. There is supposed to be one true past, but that one truth cannot be determined. However, this Satori Komeiji refused to accept this. She believes that one day she will reach the only truth through the use of enormous magical power and repeated trial and error. Her ability to read minds evolved to the ability to read the planet's consciousness. Accurately reading the planet's memories is indistinguishable from time-traveling to the planet's past. Then what was the truth that this Satori Komeiji sought? The answer is obvious. She was looking for her little sister. Satori Komeiji, who can read minds, was heartbroken. Even if you can accurately read another person's mind, that does not necessarily mean you can do what is best for them. In fact, it is much more likely that they will hate you, get mad at you, or fear you. Youkai have a much longer lifespan than humans, so they must continually endure that hatred for a very long time. Satori had begun to lose sight of where her true heart, her sincerity, resided. The only one who could read her mind accurately was her sister, Koishi Komeiji. And Koishi Komeij's heart also felt pain. Satori could read that correctly. What a kind-hearted little sister. Satori wished that no one would ever hate her sister. But Koishi had already discovered that she was hated by reading her elder sister's mind. Thus, her little sister's third eye was closed. Satori can no longer remember whether her little sister chose to close her eye on her own... or if it was forcefully closed by something or someone else.