Height: 165 cm
Seira was the president of Third Feather, having a warm relationship with her club mates, specially Tsubasa Takanashi, who seed her as a role model. However, Seira was defeated and humiliated by Haruma Hazeura. This made her believe that she was unworthy of be a club president and handed over the position to Tsubasa after graduating to high school.
