Hyakurin (Jpn. - 百琳) is the former deputy leader of the Mugai-ryu in Blade of the Immortal. A female assassin and a lieutenant in the Mugai-ryū. Hyakurin was the wife of an abusive samurai, Hayakawa Kakōsai Genkei, who was obsessed with trying to gain fame by training Matsuhiko, their sickly son, to become a strong swordsman, and killed Matsuhiko's unnamed twin sister shortly after her birth because he saw no worth in raising a girl. She later kills her husband to avenge the death of her son by his father's hand and is then arrested and sentenced to death. Her case came to the attention of Kagimura who subsequently recruited her into Mugai-ryū. Hyakurin's most unusual physical trait is her blonde hair (concealed frequently under a wig), which she maintains by bleaching it with a strong che