Sometime in the past, the Fuji family was saved from Demons by the Demon Slayer Corps. To express their gratitude, the family designed their family crest with a Wisteria flower so corps members would be able to identify the home, and stay there free of charge.
- During the Final Selection, Wisteria is used to keep the Demons trapped on Fujikasane Mountain.
- Following the Final Selection, Wisteria is used to engrave the ranks of the corps members on their hands.
- Wisteria can be used to create poisons which can paralyze regular Demons and immobilize Lower Ranks of the Twelve Kizuki.
- Wisteria is used by Shinobu to create a medication which would turn a Demon back into a human.