So a player (Matsu Berserker) wants to become the Emerald Champion as their ninjo. I totally love this. It's almost impossible to resolve unless the campaign goes on for a long time but it will create interesting intermediate plot hooks nonetheless.
I'm trying to think of some common "routes to success" in Rokugani society. Let's say in our world, if a kid wants to be a the president, he/she will probably go to a good prep school, then a prestigious university, probably as a lawyer, economist, etc. build up a network of politicians and business owners, etc.
What do you think are some of the routes to success if a Rokugani wants to become the Emerald Champion? I think going through the rank of the Emerald Magistrates might be one or becoming an esteemed Daimyo in one's own clan could be another. But I'm not so familiar with the existing lore of previous Emerald Champions and the necessary process through which one is chosen.
Appreciate the help!