Himeno is a public safety devil hunter who works under Makima's special squad. She is a mature, experienced, and efficient devil hunter with a calm demeanor, but also has a pessimistic worldview due to the high mortality rate of devil hunters. Himeno has a close relationship with her partner, Aki Hayakawa, whom she trained. She possesses the Ghost Devil contract, which allows her to summon and control the right arm of the Ghost Devil. Himeno is also skilled in hand-to-hand combat.