Shirota commented that as he is close friends with Miura and Kuroki in real life and he had acted in a school drama with Miura before, he felt a tinge of nostalgia to be wearing a school uniform in the drama and that it made him feel young again. As such, he enjoyed the filming very much although he had to imagine how to act as Iwashimizu since he is neither the prime minister's son nor a virgin in real life. Shirota also revealed that although he is playing a pianist in a new movie due to be shown in cinemas next year and that he used to say that he was good at playing the piano, he actually isn't that good at it. As such, he was having reservations as to whether he should take up the role of Iwashimizu since he wasn't sure if he could handle the piano playing scenes. However, since Miura and Kuroki are in the cast, that was what led him to accept the offer. He also revealed a funny episode on the set as Kuroki always called him Yu-kun in private but switched to calling him Shirota-kun during the filming. This made the two of them feel really awkward as they joked that it made them "sick" to be so polite to each other.
Sources: Natalie / Oricon