Item from Demon Slayer by Koyoharu Gotouge
The demon-repelling flower — its fragrance burns demon flesh, its extract makes lethal poison, and its blooming trees form the barriers that keep the Corps' secrets hidden.
Wisteria is to demons what garlic is to vampires — except it actually works. Demons cannot tolerate its presence: the fragrance burns, contact with concentrated extract causes tissue damage, and wisteria-infused weapons add a poisonous element to Nichirin strikes. Shinobu built her entire fighting style around wisteria-based poisons. The Demon Slayer Corps cultivates wisteria strategically: around headquarters, the Swordsmith Village, recovery facilities, and safe houses. The Final Selection mountain is ringed with wisteria trees that keep demons trapped inside. Wisteria incense and sachets are given to lower-ranked slayers as emergency demon repellent. It's the Corps' second-most important tool after Nichirin blades.
Cascading clusters of purple flowers that hang from woody vines in dense, fragrant curtains. Wisteria trees can grow massive, forming canopies of purple blooms. The flowers have a sweet, distinctive scent that humans find pleasant and demons find agonizing. The plant appears throughout the series in both natural and cultivated forms — lining Demon Slayer properties, ringing the Final Selection mountain, and growing around every location the Corps wants to keep demon-free.
Also known as: Wisteria Flower, Fuji no Hana, Demon-Repelling Flower