Sawa was charged with protecting Mermaid Hill, a hollowed out cave where a mermaid and her various body parts were kept. The lure of immortality was too great though, and led Sawa to test the blood of the mermaid on her dying sister Towa. The blood kept Towa alive, but deformed her arm and caused her hair to turn completely white.
The Meaning Behind the Name
Sawa is made up of two kanji meaning "to help" and "harmony". Kannagi's three kanji mean "souless tree".
Naoko Kyouda (also known as Hisako Kyouda) plays Sawa in Mermaid Forest television incarnation. Kyouda is a vetern voice actress known for playing Kaede in Inuyasha, Babara in Urusei Yatsura: Only You, Zirconia in Sailor Moon Super S, Rin Mikuriya in Stratos 4, and Magno Vivian in Vandread.
Barbara Goodson provides Sawa's English voice in the TV series. Goodson's other work includes Alcyone in Magic Knight Rayearth, Ogin in Samurai Champloo, Doris Lang in Vampire Hunter D and Hanabito in Wolf's Rain. Most Americans would most likely know her as the English voice of Rita Repulsa in Mighty Morphin' Power Rangers.