Kuyou Senjou

Nanase's younger sister. She has known Tomokazu since she was little, but she emigrated to America. She has sea green hair pulled into pigtails, and her fighting suit is yellow with a green gem in the breast. She calls Tomokazu "Tomo", and frequently calls him a pervert. She holds the Arrow of Destiny, a powerful technique made to destroy the Feydooms. She also starts many of her sentences with "Frankly". Her special attack is "Collider Bit". (Wikipedia)