Split Weather Front (a Touhou LW original) refers to high-altitude cold fronts that split from larger cold fronts. This is the temperament of Lyrica, 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 Lyrica Prismriver, the electronic musician (a Touhou LW original). Lyrica'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, Lyrica's illusionary note-performing capabilities are unchanged. Where is the world of the dead? According to one theory, it lies far up in the sky in the ionosphere. The ionosphere reflects specific frequencies of radio waves, making it possible to use it to send communications. If you were able to construct a network in the ionosphere―a type of "sky net" if you will―you could use it to monitor the entire planet. However, some believe there is another world of the dead, not in the sky but deep underground. They believe that while the kon (also known as hun) souls are less dense than air, the paku (also known as po) souls are heavier than air, and so sink beneath the ground. An underground spirit world might simply be referring to the world of fungi. Beneath forest floors, expansive fungal networks known as hyphae stretch out. They connect all the trees via their roots to form one organism. Fungi are decomposers, so it's plausible that a plant, animal, or even a human would be reincarnated as one. Furthermore, it's said fungi communicate by sending electrical signals through hyphae, which is highly reminiscent of how a nervous system works. The conclusion of this train of thought is that the samsara cycle could be a kind of food chain based on a given ecosystem. Regardless of what's been discussed above, maybe everything in this world is connected in some unexpected way, i.e., an invisible network. It's impossible to deny such a network may take the form of spiritual pathways, spiritual frequencies, or the spirit world. There's even the possibility that complex pseudo-electrical circuits embedded in the materials used to construct houses are projecting holograms that we call poltergeists. Lyrica is certain that if she continues to expand the Spirit World Network, she'll be able to travel anywhere. The network can be thought of as an ever-growing hypha, records of diving to the depths, or an accumulating log of hacked data. By inputting musical performances and outputting music, she can use it to access things faster than anyone else can. However, Lyrica has overlooked just one thing: there may be other like-minded individuals on the network...