When Mei's father left the family, Shirori was taken in as an adopted child to inherit the family. However, when Mei returned, Shiori lost everything. In addition to her sudden weak health which has left her in a wheel chair, she even lost Rihito, her most precious person. She is willing to do anything to get him back, as well as to continue being the successor to the Hongo family. Currently she holds the highest rank in St. Lucia, earning her the name "Lucia-sama"