Kagerou

Kagerou (陽炎, Kagerō), also known as Kage Houshi (影法師, Kage Hōshi) in the beginning of the manga, is the mother of Recca Hanabishi who obtained immortality when she sent Recca (and accidentally Kurei) to the future by using a forbidden spell during the battle between the Hokage and Nobunaga's army.