The heroine and Tanjiro were childhood sweethearts. After being attacked by a ghost, he disappeared and was met by Koiba and adopted as his stepson.
She was picked up by Toshita Tanoshita (the heroine's adoptive mother). She was in a state of amnesia when she was picked up, and her adoptive mother was killed by Mo Tong.
She is as talented as Tokitou and even learns faster than him. She can use sweet breath to know a little bit of flower breath. The heroine is very powerful.
Her blood can resurrect people with only one breath left, but only if there is still one breath left, and everyone takes the survival route
Purpose: Protect others