A Self-Annihilator. Her true name is Raiden Bosenmori Mei, and she walks the cosmos alone, carrying with her a long sword

Though aloof and taciturn, her blade flicks out like lashing lightning. She always strikes with her scabbard, to never draw the nightmarish memories of her sword

She has a bad memory, but sometimes she speaks things unusual for her bad memory. She also tents to forget the way she is supposed to go, but that doesn't stop her from arriving anyway. 
Has purple eyes and hair