Y/n is Sanemi Shinazugawa’s wife. During the Hashira training arc, the demon slayers train at multiple of the Hashira’s estates, one after another. When Tanjiro, Inosuke, and Zenitsu get to the estate of Y/n and Sanemi, training with Y/n, Tanjiro notices a photo of Y/n as he walks to the training grounds with y/n and the others. It’s of y/n except it’s clearly from when she was younger, her eyes brighter and her skin with less scars, a gentle appearance.