MLB has multiple layers of farm leagues under its umbrella. Generally, they are divided into 3A, 2A, 1A, and Rookie in order of level, but the reality is a bit more complicated. In addition, each level has its own baseball team, and several more leagues exist from there. In the U.S., where there is no corporate-sponsored baseball, as in Japan, MLB has a whole class of promising players who have graduated from school. In the past, it was said that only 2A players could be considered professionals in the true sense of the word, and those in 1A and below were regarded as "professional reserve corps. The MLB, which has recently stopped holding "reserve pro" players for pay, has outsourced player development, similar to Japan's NPB, and the minor leagues are disappearing. It has formed partnerships with independent leagues in their place, and attention is now focused on independent league players in development. Against this backdrop, the independent league in the U.S. will be even more certain in the future. The tryout to be held this time is sponsored by the "Empire League," which has many players transferring to higher leagues. Ride this great wave of promising Japanese players to the top of the baseball world!