She is a member of Homura's Crimson Squad.

A former third-year student at Hebijo Clandestine Girls' Academy. She's expressionless and largely wordless, to the point that nobody can ever quite tell what she’s thinking.

She claims to have no emotions, but she’s surrounded by friends who are frank and upfront with their feelings, giving her an almost scientific curiosity about the very concept of human emotion. Her weapon of choice is the knife, which she wields with grace and aplomb.