Stheno is a fictional character from Fate/hollow ataraxia, appearing as one of the Greek goddess sisters associated with the Fate franchise. She is a calm, elegant, and mischievous presence, often contrasted with her more openly affectionate sister, Euryale. In the series, Stheno serves as a minor but memorable character who adds mythological flavor, humor, and a subtle sense of danger. Her role emphasizes her divine, alluring nature and her connection to the broader Servant and mythological lore of the Fate setting.