Seinen is a genre of Japanese media, primarily targeting young adult men, typically aged 18 to 40. It encompasses various forms of storytelling, including manga, anime, and light novels. Seinen works often explore more complex themes and character development compared to shōnen, which is aimed at younger boys. The narratives in seinen can range from action and adventure to romance and psychological drama. They often feature mature content, including violence, sexuality, and social issues, making them suitable for an older audience. Popular examples of seinen include Berserk, Tokyo Ghoul, and Death Note.