Chiara Toscana

Chiara Toscana is the successor of the title "Archer of Aurora" (which is previously held by Karl Berwald). She is a young girl who holds a contract with a Crimson Lord with two personalities named Outreniaia and Vetcherniaia, "Forerunner of Daybreak" and "Successor of Twilight", respectively. Her choice of Divine Vessels is also arrowheads like Karl, but she prefers to use it as hair accessories instead. In the battle, the arrowheads become the tips of the aurora-colored bow which is used to shoot the signature Unrestricted Spells of "Archer of Aurora": Gripen's Howl and Draken's Roar.
(Source: Shakugan.Wikia)