Tagonaka Yukimasa (田護中 幸正) is government employee investigating the Darwin's Game and a former department detective for Metropolitan Police.
Yukimasa has short dark colored hair. He wears a white shirt, suit pants, a dark colored necktie, and a cap.
Yukimasa is an upright and dutiful man who takes his job seriously in investigating the Darwin's Game. Despite being thrown into the game with no prior knowledge, he manages to adapt to his situation and survive. He is shown to be somewhat intelligent, figuring out the code message that Kaito sent him. He is shown to be sympathetic toward Sudou Kaname, letting his casual attitude slide because he knows he's been through a lot.
Physical Combat: As a former police officer, Yukimasa has experience in physically dealing with opponents.
Equipment: As a police officer and later a government employee, Yukimasa uses a gun.