Shiori Hio/Kiryu - VK OC

Shiori appears out of nowhere, claiming to wishing to avenge her mother (Shizuka Hio) and "rescue" her father (Ichiru Kiryu).

Her appearance shocks everyone, who had never known about her existence, with Ichiru's exception, who quickly explains his family, especially his wife and his twin brother Zero, that he was never sure if Shiori was his child or not, since Shizuka was so manipulative that he questioned everything. He also explained that he had believed that Shiori was dead, supposedly killed by Shizuka.

Shiori is an Aristocrat vampire, with abilities to control ice and snow, earning the nickname of "Ice princess" among the rest of the Night Class, after she enrolled in Cross Academy.