switching branches

well now 2 of my characters are emperor and high king ranks and i confirmed that those american rank names on this site are official names for american version.
also there's a way to switch branch from demonlord-emperor to stormlord-highking . i was subjugator and became demonlord. then i lost 2 rounds on purpose to demoted to grandmaster. after that, get 10 consecutive wins without losing a point and you'll be stormlord. im sure it works otherway around too.