Ikeido was surprised when TV Asahi approached him about the SPs but still gave approval to use his novel and combine it with the original script. Besides Endo, Suda and Takahashi, the original cast from the drama series will appear in the SPs along with new additions such as Okura Koji, Kadowaki Mugi and Aibu Saki.
Endo commented that he felt that he had already given his all in the drama series and was surprised to be approached again for the SPs. However, after hearing about the viewers' feedback and requests for a sequel, he decided to take on the role again and vowed to make it even more interesting this time. As for Suda, he had been hoping to do this drama again and is thankful for the love that viewers have showered on them. He pledged to put in his best for the role even though he knows that it will be another physically demanding filming process this time.