When the world thinks of Japanese entertainment, the mind often leaps first to Pokémon, Studio Ghibli, or the neon-lit thrill of a Mario Kart arcade. Yet, to stop there is like judging Italian culture solely on pizza and the Colosseum. The Japanese entertainment industry is a complex, multi-billion-dollar ecosystem—a hydra-headed beast comprising television, music, cinema, video games, and the enigmatic "idol" subculture.