Incomplete: Attend a game at the Koshien High School Championship Tournament

I learned about this while reading the “Ace of the Diamond” manga on Comixology. It’s a highschool baseball tournament, but culturally its a bit like March Madness and the Superbowl all mixed together. 

https://blog.japanwondertravel.com/what-is-koshien-high-school-baseball-in-japan-36860