Ikuta revealed that when he first read the manga five years ago, he had been dying to do this with Oguri and was glad that his wish finally came true. Likewise, Oguri commented that he had been hearing about this from Ikuta for a long time so he was pleased that they achieved this goal. The two of them last worked together in the 2007 FujiTV drama "Hanazakari no Kimitachi e" and became close friends since then. Although it has been 8 years since they worked together, they had grown up quite a lot over the years so they can now rely on each other and perform well together.
In preparation for the action scenes, Ikuta went to South Korea where he received training for four days and also went for regular training sessions with Oguri at night.
During the event, it was also announced that the theme song of the drama will be sung by Arashi and released as their 45th single on 25 February. This is the first time that Arashi is singing the theme song for a drama where their members are not the leading actors. The song titled "Sakura" will be their first single of 2015 and is a up-tempo dance tune. Ikuta expressed his thanks for Arashi singing the theme song for his drama while Oguri commented that this is the 5th drama he is acting in which has a Arashi theme song and joked that he felt like he was also a Arashi member.
Hirosue commented during the event that she had been getting a lot of dead people roles recently but it was OK this time since she had Ikuta and Oguri trying to take revenge for her which led the audience to laugh at her remarks,
Source: Sponichi 1 / Sponichi 2 / Yomiuri Hochi