Kouta has been a detective for the TMPD for 10 years, and a lead detective for 2 years. He is 30 years old and he lives alone. The only social life he has is when his coworkers force him to go out with them. He likes to keep to himself, while keeping himself busy with his detective work. He enjoys reading and playing video games in his free time. He is generally cold and calculating, but there are some hidden things that can melt his heart.