Dorm head of the Ryougi clan, and their most powerful member in OLYMPUS. Possesses Mystic Eyes that are heralded as the most powerful ones in the whole OLYMPUS city. And even without them, she is said to be on the level of her Servant when it comes to moving silently and striking quickly. A very dangerous individual, even when alone. And someone who is impossible to catch off-guard.
They say that she came to OLYMPUS in order to find a cure for her mother's current condition, and in order to take revenge on the Half-Bloods that caused the tragedy that befell her family. With her mother in coma, and her father "abducted" by the sister of his former employer, Ryougi Mana has to shoulder the difficult task of leading the clan, while trying to live a relatively normal life in OLYMPUS.
Unknown at this time
She's said to possess the strongest Mystic Eyes among the Dorm Heads.