The Sword of Hisou is a celestial relic and one of Tenshi's weapons in Scarlet Weather Rhapsody. It has the ability to exploit an opponent's weakness, no matter the circumstances. First, the sword converts the opponent's spiritual nature into scarlet mist, then into a form that can be seen. Once the opponent's nature has been revealed, the sword can change itself to channel the most effective attributes to counter that nature.
The spiritual nature evoked by the sword takes the form of weather, which is why it somehow looks flexible. Also, spirits slashed by the sword become scarlet mist. This mist can be used to influence and control the weather. The shape-shifting properties of the sword mean that Tenshi can keep it anywhere on her body without taking up space.
Additionally, it can be drawn from seemingly nowhere in battle and is durable enough to channel the powerful strength of the celestials, allowing Tenshi to rupture the Earth or even cause earthquakes in the surrounding area.
Powers and Stats
Name: Hisou no Tsurugi, Sword of Hisou, Sword of Scarlet Perceptions.
Origin: Touhou Project
Age: Probably thousands of years old.
Classification: Sword, Jian, Tsurugi, Divine Weapon, Magical Weapon.
Wielders: Tenshi Hinanawi.
Powers and Abilities: Spiritual Energy Absorption, Adaptation (It automatically detects the enemy's nature and changes its own properties to better utilize this knowledge and protect its wielder), Weather Manipulation, Earth Manipulation, Shapeshifting, Defensive Aura (It can envelop Tenshi and boost her durability to enormous levels for several minutes), Magic
Speed: Depends on the user. Beam speed is likely Massively FTL+
Lifting Strength: Unknown
Striking Strength: Large Planet Class
Durability: Large Planet level
Range: Several kilometers, probably several thousand kilometers (Marisa mentioned that its beam attack is similar to her Master Spark)
Weaknesses: Nothing notable
The sword can only be used by a Celestial. When used, it gathers the surrounding spirit and converts it into energy. Upon releasing the opponent's spirit and identifying the type of the opponent's spirit, it is also able to control the accumulated spiritual energy and convert it into the spirit of the opponent's weakness, and attack using their weakness. The spiritual nature evoked by the sword takes the form of weather, which is why it somehow looks flexible. Spirits slashed by the sword become scarlet mist, which can be used to influence the weather.
- "Scarlet Weather Rapture": Condenses all the spiritual energy collected by the sword, and fires it as a beam of pure scarlet energy.
- Heaven & Earth "Land that Oversees the Distant World Below": Tenshi stabs the ground, rupturing the Earth and propelling the land below her into orbit at high speeds.