The original drama described how a group of underaged teenagers and children became the only survivors after a micro-organism caused the death of all the adults. In the lawless and chaotic situation, Yamato (Domoto Koichi) and Takeru (Domoto Tsuyoshi) took the lead to achieve peace with the help of their friends. The theme song of the drama "Aisareru yori aishitai" sold more than 1.6 million copies then which was a huge milestone in the duo's career.
The two of them were 18 when they acted in the drama which ended with a final line pledging that they will meet again in 20 years time. The drama SP will feature them as 38 years old men and how a new and strong enemy arrives in front of them. The story will still be written by Tsutsumi Yukihiko while the producer will be Hazeyama Hiroko.
Reflecting on what happened during the filming of the drama, Koichi commented that it was a valuable and intense experience. In the SP, the tables are now turned as they used to be teenagers against the adults but they have become adults now. As such, Koichi is excited about playing Yamato again and meeting with the same staff from 20 years ago. As for Tsuyoshi, he thought that it was nostalgic to think about those days when their characters were very young and had a pure sense of justice. To be able to reunite with the staff then feels like destiny to him and he's thankful and happy about this chance to do the SP.
Young actors such as Arashi's Aiba Masaki and Matsumoto Jun who were Johnny's Jrs at that time, Tokuyama Hidenori and actress Yada Akiko also appeared in the drama but it is not known yet if they will return to the cast lineup for this SP.
Sources: Nikkansports / Sanspo 1 / Oricon