【Personality:】 Calm, collected and easy going, this would be the most apt words to describe Myako. She seemingly never gives in to negative emotions such as sadness, rage or anything else like that. Much more to her heart as joy and having fun, looking on the optimistic side of things. For the most of her life in soul society this was all people saw of her. However there was a side to her they weren't aware they were experiencing. She knew that only personal strength can grand her true freedom and respect, thus she bid her time back then, waiting for her power to grow, before she revealed her abilities fully. Only then did she go full to her calm, collected and easy going persona for real.
Additionally as much as she likes to spend time within the barracks or with the people in the Gotei 13, she much more prefers to hang about with the regular souls out within soul society, spending much of her time, hanging around them in disguise, seeing how they live, living as they do, telling stories to the children, helping them find ways to live easier lives. Granted this gets her into trouble, but as she likes to say – live is short. So she might as well enjoy it as much as she could, beside what would they do to her anyways? It's not like she's broken any real rules about this.
Still as anyone who seems overly calm and collected on the surface, there's a turbulent depth to her that shows up on the very rare occasions that she completely loses control of herself in some kind of hatred or anger. In those cases she will kill. Doesn't matter who it was, as long as they have pushed her to that extreme, there is no hesitation. As long as they are dead, she's willing to jump to hell and back if she has to. If they aren't in hell, well she's willing to drag them down to it along for the ride. As the old saying goes: the quietest people are the scariest when they snap.
【Biography:】 Myako's past prior to entering soul society is a little bit of a haze to her, but it's not without any memories. She was born to a family of a well off merchant. Long and rather boring story short, she was used for political usual marriage of political and economy gains and eventually got killed by the mistress of the man she was married to. Needless to say it wasn't as simple as that since the moment she was about to die, she also kinda pulled some impressive stunt and stabbed the woman that killed her with the very knife she pulled from her body before she finally fell over and died.
During the whole of her life, she had never stopped seeing unnatural sights across the town she lived in. Never did she believe that after death she'd become one of those very same unnautral phenomenons around. She was dead... but still around. She could see the world continue around her. The thing that changed was that the people around couldn't see her and she had a really weird dangling chain from her chest. For a little while she hanged about, causing small mischief to the household that was supposed to be hers. Eventually though a monster showed up, she had absolutely no desire to attempt to save anyone, but the thing seemed to be mostly after herself... turned out it was the woman she killed in return back then. Before the monster could have the chance to kill her... ehh sort of? And eat her? Sort of... a person in black showed up, slashed the beast in two with their sword and with nary an word of explanation stamped Myako's forehead with their sword's hilt. There were many curses spoken aloud at that person... both during the event and a later date eventually when they met again.
After she opened her eyes once again she was at an unfamiliar place yet somehow similar. It didn't take long for her to learn this place was called Rukongai and she was located within the west section. There wasn't much of getting to believe this was real, after all she spend quite a bit of time as a bound soul on Earth, so this place wasn't too crazy. What was a pain though was the fact that adapting to this new place was a whole different thing all together. For an afterlife of sort, this place sure wasn't all sunshine and rainbows. She lied sometimes, she stole other times, she cooperated with other souls so they could continue to exist to a degree, but it quickly came known that she was not quite as all the others. Despite being in Soul Society for a rather short period of time, her Spirit Power and Spirit Pressure were growing very rapidly and they seemed substantial to begin with.
Putting two and two together, she figured out the best course of action was to try and become a Shinigami. She went and registered for the exams. Gave it her best and passed with great marks. Maybe a little too great marks cause she was attracting attention, attention she wasn't keen on having right now. She was sure as hell this academy and the shinigamy society wasn't all sunshine like some of the people believed out in the streets. So following that she hid herself deeper in the classes. She still got good marks, but wasn't seemingly to excel in anything much. She put utmost attention to detail to pretend her skills were not developing at incredible speeds and that she was somewhat above average, but not by too much. Still despite the elaborate charade she was putting on, she did graduate from the academy and got herself a place in the 13th division. Where she met her old friend the bastard who just hurled her to this world without any explanation. Turned out he was a Lieutenant of the division. After cursing him to no end, she started to do her tasks, whatever they were, day after day, getting stronger while keeping her abilities as secret as possible, attempting to pass as an ordinary soul reaper.
Eventually somehow or another she even ended up as a Lieutenant instead, replacing the bastard. All the while her abilities progressed steadily and rapidly to a degree. She got her Shikai pretty fast and after a about 100 or so years started to learn her Bankain in secret. Took her decades to do so, but indeed she managed to do it without revealing it... probably. She was suspecting the captain might be suspicious of her, that she was doing something in secret, but she made sure to erase all tracks of her training. Always making sure to be well hidden. Eventually her Bankai was manifested properly and it's abilities properly understood and while there was even more of it's capabilities to master, storm was brewing on the horizon. One that she had spotted in her years of pretending. She was soon going to be put to the test and she was sure she'd give a lot of people a surprise.