If someone asks about the national sport in Japan, that's none other than Sumo. But, it's not the most popular sport among the locals. Locals love baseball. It's the most-watched sport and the most played one as well. Two professional baseball leagues operate in Japan, and a myriad of leagues in high schools and universities are operated across the country. In addition to just watching, the Japanese also love to cheer for their teams by singing fight songs that only they understand. This game was introduced to Japan during the Meiji Period, and as many Americans settled in Japan after World War II, the love for baseball grew like bushfire.