In Japan what would you find in a Heya

Sumo wrestlers
In sumo wrestling, a heya (部屋?, lit. "room"; usually translated into English as stable or training quarters) is an organization of sumo wrestlers where they train and live. It can also be termed sumo-beya. All wrestlers in professional sumo must belong to one. There are currently 44 heya (as of 2016), all of which belong to one of six ichimon (groupings of heya). They vary in size, with the largest heya having over thirty wrestlers and smallest just two. Most heya are based in and around the Ryōgoku district of Tokyo, sumo's traditional heartland, although the high price of land has led to some newer heya being built in other parts of Tokyo or its suburbs.

Most heya have a network of scouts, who may be former wrestlers themselves, friends of the head coach, or supporters of the heya, who keep a look out for any powerful or athletic young men and follow the results of local sumo (and judo) competitions. Most new recruits join at the age of 15 or 16, straight from junior high school.

A wrestler is expected to stay with the heya he joins until the end of his career. There is no transfer system in sumo. The only exceptions are if the coach who originally scouted him leaves to found a new heya, in which case he might be permitted to follow him, or if a heya shuts down due to retirement or death of the stablemaster, mismanagement or financial reasons, the remaining wrestlers are often permitted to transfer to another heya, usually within the same ichimon.

Read more...https://en.wikipedia.org/wiki/Heya_(sumo)