Goufuu (a Touhou LW original) refers to a great gale in Hell that blows in proportion to the evil deeds committed by those who have fallen down there. This temperament embodies Youmu's position as the Netherworld's envoy and the servant to the manager of the Netherworld. This Youmu's temperament was artificially augmented by science since her original temperament lost its magic. This temperament is specialized to solely resist Moon Essence.

Youmu Konpaku's sealed ability. It was most likely sealed away due to the incident, and it hasn't fully recovered since. The reason for this is still unclear and requires further investigation. Youmu Konpaku's Specialized Military Outfit: The design and manufacture of this outfit were solely based on the knowledge from the manager of the Netherworld, Yuyuko Saigyouji's Knowledge Institute... or at least, it was meant to be. They ended up outsourcing much of the work to Kappa Industries (a group of manufacturing plants headed by Nitori). All of the specialized military outfits are equipped with barrier chaff. Phantom Half Bit: Youmu lost her nature as a phantom, so the existence of her phantom half was sustained by making it virtual. The phantom half can safely take its usual form anytime outside of battle, but it becomes incredibly small and is stored inside her outfit during combat because so much energy is expended when fighting. However, the phantom half returns to its normal size to attack when Youmu uses specific sword techniques. Beam Roukanken and Beam Hakurouken: Youmu's main weapons. The spirit power that was lost from her Roukanken and Hakurouken was replaced with lightning power. The blades of the swords are still present within the beams. It was extremely difficult to get the swords to misidentify lightning power as spirit power, and this was only made possible when Kappa Industries received authorization to access the archive of the Divine Spirit Mausoleum's Futo and Tojiko. The kappa call this lightning power that is a substitute for artificial spirit power, Natural Force (it is not known where this name came from). When the blades are coated in this Natural Force, they become glowing beams of light. Trance Headset: This device is equipped with an artificial spirit sensor and virtual spirit-talk comms to replace Youmu's spirit sense that was sealed away. The development of this headset by Kappa Industries was inspired by the design of Miko's earmuffs. A Poltergeist Player is built into the device. It provides support or interference depending on which of the songs modeled after performances by Lunasa, Merlin, and Lyrica are selected to be played. Electric Neural Spirit Root Net: A network device made up of mental information traced from Yuyuko's lingering attachments as a ghost. It is deployed within the outfit's inner layer to support Youmu during battle and control various spirit devices (Spirit Shocker, Spirit Sword Wall, Ghost Assist, etc.). Yuyuko's lingering attachments are so strong and free-spirited that they had to be bound with a sub-network based on the roots of a certain youkai cherry blossom tree.