During the event, Maeno and Yanagi commented that they were all very impressed with how Hayashi prepared for his role as he looked so convincing as a virgin. Ikeda also echoed their view and said that her first impression of Hayashi was that he seemed so frightening with his long nails but rather realised that he was just too immersed in playing his character. During the filming, she was in awe of his ability to concentrate fully. However, Hayashi himself expressed his only worry about this because he was worried about whether the audience would misunderstand that he was like Kunimori in real life. As such, he always requested the make-up artist to make him look good during the interviews and public appearances for this movie.
Sources: Natalie / Eiga.com