This is Koushien. Koushien can mean two things: the name of the famous open-air baseball stadium in Japan, home to Osaka’s professional Central League baseball team, Hanshin Tigers, and it can also refer to the name of Japan’s annual national high school baseball championship, which is held in Koushien stadium.
It surprises many people, as it did me, to discover that Koushien stadium is not even in Osaka, but rather located in Nishinomiya, Hyogo Prefecture, near Kobe. Many people associate Koushien stadium with Osaka, due to it being home base for Osaka’s Hanshin Tigers. But the stadium was built for the purpose of hosting the national high school baseball tournaments, and not specifically for professional baseball. It was built in 1924 and didn’t become home to the Osaka Tigers until 1936. Hence, and this may seem bizarre to some, the high school tournament has priority over any professional baseball games.