Suiten Ikaruga

, formerly known as, is a resident of Decapitation Island.

History
Suiten used to be an Ishiyama High School student along with Zenjūrō and Shinobu, during this time Suiten went by the name Nazuna. Suiten used to be the leader of Team Valkyrie who were feared as the strongest girl gang in all of Kantou.

She also appears to have a crush on Zenjuro, as she got upset with Oga when he said that Zenjuro did not want to rely on her. She also admired Zenjuro when he was in high school and thought he was extremely cool due to having already contracted with a demon and having a dark side.