Subaru Okiya is a mysterious and intelligent character from the anime series Detective Conan. Initially introduced as a graduate student in engineering, he becomes a temporary resident at Dr. Agasa's house. His calm demeanor and intellectual prowess hint at a deeper connection to the overarching plot. Subaru is later revealed to have a significant link to the FBI and the series' protagonist, Conan Edogawa. His true identity and motives unfold as the story progresses, making him an intriguing and vital part of Conan's journey to uncover the elusive Black Organization.