mizuta ahato ( her actualvname ) was probably grew up some were in octo valley/canon and was probably a octoling solder. evenchuly mizuta (and other octolings) gave up fighting ther rivals (the inklings) and joind them after entering (probably) inkopalis she started her career as a music artist and dj who likly did tryouts from place to place ( on her travels ) she went into a subway system called the deep sea metro were scientist and milatary leaders were doing odd and dark experiments at some point the scientist created a cemical that causes octolings to lose free will and can be controld like robots. of course they spotted mizuta, drag her into there labs, and was turned into a zombe robot slave calde a sanitezd octoling though mizutas mutation was some how different and can some how try cumudicate to peapol in the subway about her unforchenit back story through her songs at some point she was calde dedf1sh probably referring to orogens of sanitiezd octarions and wate they are