Yanagi is a teenage girl gifted with the innate ability to heal any kind of physical injury, and Recca immediately offered to serve her as his loyal ninja after seeing her compassion when she healed a severely injured puppy in a local park (in the anime series, she heals Recca after a pile of metal pipes collapsed on top of him). She falls in love with Recca, but is to naive to see it. She also is the prime objective of the series' main antagonist, Mori K�ran, as he believes that her healing powers will help him attain eternal life. In the manga, it is revealed that she is the reincarnation of Sakura-hime (Princess Sakura), the daughter Oyakata and princess of Sawaki clan, who lived over 400-years before the series' actual storyline. Towards the end of the series, Recca absorbs Yanagi's soul using his flame powers to save her from being absorbed by the Tend� Jigoku. This results in her becoming a flame spirit like Kurenai, only with a flame with the power to heal. It is this power that allows her to defeat the Tend� Jigoku once and for all. (Souce: wikipedia) She is known as Anna in the Filipino version of the anime. (Souce: flameofrecca.wikia.com)