Endless - Wings of Enji

Her name is Enji Chou. A fan character made for a loveless themed rpg. She fights alone and more importantly has the ability to take the roles of both fighter and sacrifice. Why? What is she called?
Tadaaa! Position: Helix! A person who can take the role of both fighter and sacrifice upon desire or both if she battles solo! This is tricky to be though, she's not able to kick butt as easily without giving up something. She takes double damage no matter what happens, which means she usally likes to fight alone.^_-
Her name is Enji meaning 'Dark Red' can you fgoure out why?
Her real name is Endless.

"Power without limits, I will overwhelm you! Beware as my wings spred to the sky! ENDLESS!"