Takashi Sawazaki

Takashi Sawazaki (沢崎 孝) is the Leader of F Squad at the start of the series. He was originally a member of the Investigation Department before his transfer. He has a lot of compassion for the plight of devils in society and is sometimes considered too soft in the way he handles red-eye matters and his devil subordinates.

Appearance
Sawazaki is a middle-aged man with a relatively tall build, a serious face and defined, sharp facial features. He has short, cropped black hair with short bangs and sharp, black eyes. He is often depicted in his formal business suit, which consists of a white shirt with a green tie, and brown jacket over it, and a pair of brown pants and black shoes.

Personality
Sawazaki is a mature man who takes his job very seriously. He doesn't like other people slacking off while working and the same applies to him, in which he is hardworking. He is also very calm and responsible as he is the leader of the F squad. He is able to handle situations pretty nicely. He also doesn't involve himself in matters that don't involve himself unless necessary. He can be quite blunt and isn't afraid to scold Jill or Yuuki for arguing. At the same time, he is a very nice, kind and caring man. He cares for his comrades deeply, and sees people, devil or not, as an equal. He wants to coexist with Jill and Yuuki despite them being devils. He is also quite soft when it comes to his devil subordinates. However, he can at times be overly kind and do things on a whim or when other people ask for things. This can lead to him actions being misunderstood. He doesn't like his relationships with people changing and feels guilty to have hurt people both physically and emotionally.

Juliana Lloyd
Jill is Sawazaki's subordinate. They share a close bond as old friends and are often seen investigating devil crimes together. Sawazaki cherishes Jill and likes her, but he claims that it's not in a romantic sense. Jill, on the other hands, has feelings for Sawazaki.

Yuuki Anzai
Sawazaki shares a good bond with one of his subordinates, Yuuki. They trust each other and works nicely together as police officers. Sawazaki has stated that he wants to live with Yuuki despite him being a devil, Sawazaki doesn't really care as he only sees Yuuki as a precious person in his life.

Kaname Yukimori
In the past, Sawazaki and Yukimori were really good friends. Sawazaki sympathized with the fact that he was a devil in the police forces and was criticized, which is why he invited him to drink, and eventually, they became close friends and would often spend time together with the others in the then-squad. Yukimori's death left a huge scar on Sawazaki and he still regularly visits his graves. Yukimori's influence on Sawazaki makes him associate many situations in his life to him.