Rena Arisugawa

A young woman who is a Jinki user. She is depicted as a quiet and serious person who is focused on her job, who frequently takes the lead when fighting Kanshus. Her Jinki is Shingetsu, a pair of chakrams with a trigger-like grip that allows the four blades of each Shingetsu to spin. After Youhei's death, she becomes Riku's partner, and after they meet the Source of Infection she appears to become attracted to him. Later it is revealed she is a lost re-bound victim.