Borderless: Kouiki Idou Sousatai (Japanese Television Drama)
Borderless: Kouiki Idou Sousatai (Japanese: ボーダレス 広域移動捜査隊) is a Japanese television drama series broadcast on TV Asahi. The series focuses on the operations of a specialized police unit designed to handle jurisdictional conflicts and crimes spanning multiple administrative boundaries.
Premise and Concept
When crimes occur across different jurisdictions or when suspects move between areas, jurisdictional friction often develops between the Tokyo Metropolitan Police Department, local police stations, and prefectural police headquarters. To mitigate these conflicts and respond rapidly, the Tokyo Metropolitan Police Department establishes the Wide Area Mobile Investigation Division, a unit operating out of a mobile truck and comprising seven detectives.
Production and Broadcast Details
The series is written by Ryoichi Kimizuka and directed by Kazunari Hoshino and Keita Motohashi. It premiered on TV Asahi on April 8, 2026, airing in the Wednesday 21:00 to 21:54 time slot. The drama took over the time slot previously occupied by Aibou: Season 24.
Cast and Characters
The series features an ensemble cast portraying detectives and law enforcement personnel within the mobile investigation unit and associated departments.
- Momoko Nagazawa, played by Tao Tsuchiya, is described as a passionate detective in the Wide Area Mobile Investigation Division known for her direct and unflattering communication style.
- Tsubomi Kizawa, played by Shori Sato, is a rookie detective formerly of the violent crime division who transferred to the mobile unit following a professional error, utilizing his large vehicle license to join the team.
- Hanji Suguro, played by Eiji Yokota.
- Koji Shiratori, played by Koutaro Tanaka.
- Yu Masuda, played by Takaya Matsutani.
- Teruhiko Nemoto, played by Hiroki Konno.
- Soichiro Midorikawa, played by Kinya Kitaoji.
- Mio Amao, played by Yuka.
- Norifumi Akase, played by Yoshihiko Inohara.
