Kaenkou (a Touhou LW original) refers to a type of halo that takes the form of blazing flames. This is an apt temperament for Shou, who tirelessly works toward setting Byakuren free. She is endowed with Metal Phase, representing her unwavering resolve, Sun Essence, representing her deep faith, and Fire Phase, the temperament of her Tobatsu Armor. The cold and silent Metal Phase resists Earth Phase, because earth bears metal, but it is weak to Fire Phase, because fire refines metal. The alluring and arrogant Sun Essence resists the diverse and uncooperative Star Essence, but it is weak to the cooperative and indecisive Moon Essence. The formless and passionate Fire Phase resists Wood Phase, because wood feeds fire, but it is weak to Water Phase, because water dampens fire.

The ability of Shou from the world with a high-flying treasure ship (a Touhou LW original). There is no noticeable difference between her ability and the abilities of Shous from other worlds. The 12th Prolonged Incident This incident was originally caused by youkai who escaped from the Underworld in an effort to free the great magician sealed away in Makai. Within Makai lies Hokkai, a place sealed by a barrier. To lift the seal, Shou's Jeweled Pagoda and the Palanquin Ship were both required. However, parts of the Palanquin Ship had scattered as Flying Storehouse fragments and needed to be recovered. The UFO-like items collected by Reimu and the other humans were actually fragments of the Flying Storehouse, which the youkai had been attempting to recover. Had the humans cooperated, the matter might have been resolved peacefully, but that never happened. Nevertheless, the seal was lifted, and the humans ultimately came face to face with the great magician, Byakuren Hijiri. The unity and cooperation shown by the youkai can be attributed to Byakuren's exceptional virtue and the evident depth of her faith. Despite having been separated for over a thousand years, they never lost their regard for one another. Their bond endured even after they suffered severe humiliation at the hands of humans who likely once followed the same teachings. Neither Byakuren nor her disciples initially displayed overt hostility toward humans. If anything, their actions suggest an inclination toward forgiveness. It is difficult to find another example of a youkai group that maintained such orderly cooperation over such a long period of time. The following deductions were made based on the available true data. Fearing the youkai who resided in the temple, humans sealed Byakuren away in Makai and buried her youkai disciples in the Underworld. Shou Toramaru, however, was an exception. She could not abandon her role as Bishamonten, the temple's principal deity, and most likely stayed behind as a being worshipped by humans. The weight of receiving such devotion from those who had persecuted her teacher and fellow disciples is difficult to fathom. The way humans changed their attitude the moment someone was revealed to be a youkai exposed a frightening truth hidden beneath their faith. Forced to conceal her own nature as a tiger youkai, she continued living behind a false identity. She also carried the shame and guilt of not trying to save Byakuren and her friends, even though she knew she had no other option. Those feelings must have lingered, at least until the humans were gone. Eventually, the temple fell into ruin and was abandoned. Had worshippers continued to visit, this would not have happened, no matter how much time passed. Human faith was likely not passed down, or the temple was forgotten entirely. Its many treasures were taken by humans. Left behind was a stand-in Bishamonten, who remembered everything. That alone was enough to meet the conditions for being welcomed into Gensokyo. Shou heard a familiar voice call out to her and realized that Byakuren's companions, who were sealed in the Underworld, had returned. Along with the ruined temple that the Flying Storehouse had transformed into, Shou was also accepted into the Underworld of Gensokyo. Nazrin probably remained by Shou's side throughout this time, continuing to carry out the duties entrusted to her by Bishamonten. The above deductions are based on several underlying assumptions. 1. The Underworld is part of Gensokyo, located within the inner layer of the double barrier that surrounds it. 2. The other disciples were first sealed in Hell, prior to its transformation into Former Hell. 3. After becoming Former Hell, it became recognized as Gensokyo's Underworld. 4. Parts of the Flying Storehouse were stripped away by humans and scattered as temple treasures. After their significance was forgotten, they eventually became Flying Storehouse fragments dispersed throughout Gensokyo. The Tobatsu Armor is a fine enchanted artifact. The artifacts wielded by Shou's fellow disciples were originally magic items that were a part of this enchanted artifact. Each of these artifacts is composed of three elements. The first element is a finely crafted replica of a treasure belonging to Bishamonten himself. They were entrusted to Shou, envoy of Bishamonten, and Nazrin, his messenger. They were originally worn by Shou as personal artifacts to ensure she would be recognized as Bishamonten, and are therefore not particularly rare, as similar artifacts are commonly depicted in paintings and statues. The second element is a treasure left behind by Myouren, the Flying Storehouse. It carries spiritual power derived from Myouren's faith and virtue. Myouren was an exceptionally powerful high priest, and the items he possessed naturally came to hold power as a result. The Flying Storehouse was used as a temple and later fell into ruin. However, the portions that remained intact were brought to Gensokyo along with Shou. As this treasure serves as the foundation of the Palanquin Ship, only parts of it are used to make the enchanted artifacts. The final element is Byakuren's own faith. According to existing interpretations, Bishamonten granted Byakuren additional power because of her faith. This element serves as a key factor in an item's transformation into an enchanted artifact. However, the point at which this condition was fulfilled remains unknown. The enchanted artifacts associated with Shou initially manifested as her personal artifacts. Through her efforts to preserve them and prevent them from being scattered, they were eventually passed on to her companions. These artifacts can probably take a compact form, small enough to be concealed as simple accessories.