Mr. Rosso is a cheerful man with a great sense of humor. He always adds five sugars to his coffee and delights in seeing Anna smile as he does so. He has a deep love for movies and often laments not having enough free time to watch them when he was younger. One of his favorite films is "Summertime," which never fails to bring tears to his eyes.
In the anime, he is actually a retired mafia hitman known by the alias "Ghost." This alias is mentioned in Nina's professor's study of three murder cases.










