After a devastating earthquake strikes Makuhara in the northern part of Chiba, 18 year-old Yamato heads there to find his friend Kiichi who lives in the area. On his way Yamato meets Takeru, who is also traveling to Makuhara as a volunteer in the relief effort. However, when the two arrive they are shocked to find that the city, which is under government lock down, is intact and being managed solely by children after a mysterious virus started killing all the adults. Forced to survive on their own, the child leaders must save the city and also fight the government, which tries to hide the truth.

Title: ぼくらの勇気 - Bokura no Yuuki
Also known as: Our Courage / Keys to the City - The Kids are in Charge
Tagline: 未満都市 / Miman Toshi / Miman City
Genre: Sci-fi, mystery, suspense, Renzoku
Broadcast network: NTV
Episodes: 10
Viewership ratings: 16.8%
u 1997.10.18 to 1997.12.20
Air time: Saturday 21:00
Theme song: Aisareru yori Aishitai by KinKi Kids

Domoto Koichi as Yamato
Domoto Tsuyoshi as Takeru
Hosho Mai as Yuri
Kohara Yuki as Kiichi
Matsumoto Jun as Mori
Aiba Masaki as Akira
Anazawa Masahiro (穴沢真啓) as Makoto
Yada Akiko as Suzuko
Hakuryu (白竜) as Shibasaki
Arai Kenta as Naiki

Screenwriter: Endo Satsuo (遠藤察男), Obara Shinji
Chief Producer: Kosugi Yoshinobu (小杉善信)
Producer: Hazeyama Yuko
Director: Tsutsumi Yukihiko, Ikeda Kenji
Music: Aida Shigekazu (曾田茂一), Kobayashi Ryuichi (小林隆一), Kobayashi Etsuko (小林悦子)