Kata Zensen (a Touhou LW original) refers to a weather front formed when bodies of warm and cold air collide and descend together. This is the temperament of Lunasa, one of the three poltergeist sisters, who use music made by combining electrical signals and spirit energy to hack into the spirit world. Her temperament was reformed by exchanging magical principles for the laws of physics. This temperament is specialized to resist Moon Essence and Star Essence.

The ability of Lunasa Prismriver, the electronic musician (a Touhou LW original). Lunasa's original ability became this one when it was concealed by the system of the Capital. However, due to miscellaneous adjustments and the construction of alternate functions, Lunasa's melancholic note-performing capabilities are unchanged. Assuming that poltergeists alter themselves in order to continue existing, what kind of forms can they take? One clue lies in the historic discovery of animal electricity. It went on to be named galvanism by a revered academic and is what gives life to organic beings... In other words, it's what powers the soul. To humans who live in an age where scientific knowledge has spread far and wide, electricity is nothing but an abundantly available, inorganic energy resource. However, when something is newly discovered, it is considered mystical and mysterious, whatever that thing may be. Whether it's a new system, a new mechanism, a new item, a new aspect of culture, or a new member of your household… it's always something otherworldly introduced by a marebito. It feels like magic and becomes a focal point around which strange phenomena occur. The artificial human created by sewing corpses together and brought to life with lightning is a prime example of the mysteries attributed to electricity. There are even reports of people receiving messages from the dead through electronic voice phenomena. It's understandable how someone might believe that electricity is the essence of life and the true form of spirits. The soul is made of plasma, and the spirit world is simply the ionosphere located far up in the sky. That's why the theremin is such a creepy instrument and why tales of spooky sounds continue to be told, existing now as digital data stored on compact disks or online. Since souls are electricity, all of that is to be expected. But Lunasa and her sisters realized something. Since they control instrument phantoms, surely they could also freely control the electronic world. The tool for interacting with that world is a piece of equipment known as a "keyboard," but the keyboard is Lyrica's specialty. And if Lunasa and Merlin were to use their own favorite instruments, they could input data at break-neck speeds. They could hack the world with their musical performances. This world's Prismriver Sisters were certain this was a monumental discovery, for to them, the electronic world is the spirit world made up of thoughts, feelings, and beliefs. Working together with Alice, their discovery may aid in the liberation of Xanadu. Filled with hope, the three sisters began to think about how to make that possibility a reality.