小暮 宗一郎

He was partnered with the protagonist during the first case they handled. Afterwards, he began working in the Historical Archives Section alongside the protagonist. His rank is sergeant.

Despite his appearance as a veteran detective, he is still in his 20s and single. He is a third-degree black belt in judo, a third-degree black belt in kendo, and a second-degree black belt in karate, and is a passionate and enthusiastic person. However, contrary to his appearance, he is extremely averse to blood and ghost stories.