This is Kamenashi's first appearance in a romance movie where he plays the police officer Sagano Kouta who falls for and marries a senior high school student Motoya Kako. In order to look convincing as a police officer, Kamenashi revealed that he had to conceal some parts of his usual image and tone down on the sexiness. In response, Tsuchiya who plays Kako, praised her co-star for being a cool and charming gentleman and commented that this must be the same feeling experienced by Kako who meets her Prince Charming. Murakami who plays Kako's father, also chipped in to say that although he didn't appear in that many scenes with Kamenashi in the movie, he was impressed with his high level of concentration and cited the scene where he had a drink with his "son-in-law" as his No.1 favourite in the movie.
During the opening ceremony, Kamenashi and Tsuchiya were dressed in wedding wear and recited a pledge to make everyone happy through this movie and hoped for the film's success.
Sources: Nikkansports 1 / Nikkansports 2 / Sanspo 1 / Sanspo 2