I will try and write up an origin story tomorrow. I always find the background to be the hardest part.
Edit: I will do a rough sketch of her background and then work my way from there so I will simply write down a few keypoints.
Relatively young clan in comparison to the others. Despite that they have quite the wealth gathered through various means, but mostly via marriage and securing that a bloodline survives.
Might or might not have a brothel/love hotel. Been toying around with this idea although I am not sure if this would break canon but seeing as Japan has them and this is Naruto, it seems plausible what with the mix-and-match of modern and old technology and culture. Could be just me derping.
So for now I will only focus on Emi and then try and give a bit more clear picture of the clan as inspiration stops being an asshat.
Background: Emi is currently the only child of her familys generation, a rarity in and of itself due to how fertile the men and women of it were. On the plus side it meant that she didn't have any sibling rivalry, but it also meant that the pressure on her was twice as high. There were times when she wanted to run away but she never truly caved in, feeling a sense of pride in that she had such trust from her family. So she continued to push herself, sometimes on the brink of collapse. The proper way to talk, walk, smile and any other forms of human expression were drilled into her. But just like how a candle ceases to burn, so too did her body.
While it didn't quite crash and burn, it took a toll on her, making her physical performance suffer. But while she could not quite jump as high or run as far as most people, she made up for it via cunning, stealth and the means available to her as well as her own pride.
While her parents weren't too fond of their daughter undertaking a physical life like that of the shinobi, they knew very well that she was headstrong to a fault and arguing futile. Besides, they thought, she would soon see the errors of her way and return to the safety of her home.
Their hopes were misplaced.
I'll try and make it a bit more coherent in terms of chronological order as it feels a bit all over the place right now. But this is what I managed to squeeze out in about ten minutes so far. >.<
The Tsukuda Clan: Their exact origin are unclear, but it is believed they sprung up not too long after the Third Raikge in the Cloud Village, notable in part due to how fast their family grew. Of course, quite a few clans that were in danger of being wiped out, from the paltry to the exquisite, arranged marriages were common for this new bloodline. While it could be said that they don't offer anything special like a Bloodline Limit or one of the three sacred eyes, they do offer a certain security to thin blood thanks to their highly unusual fertility that resided within both men and women.
Over time they started to deal in information gathering and the production of perfume, gaining some reputation as information brokers and perfumery. But they were still mostly relied upon as a way to secure the continued lineage of ones family. It is believed that they use some form of technique to control their bodies, but whatever secrets they have are yet to be uncovered due to their secretive nature as per the usual of any respectable bloodline. Rumors are abound as to whether it is a genetic mutation or the former, one that they themselves perpetuate via their information network.
But it doesn't end there as their specializations culminated in the opening of brothels, where these three aspects weave endlessly with eachother like a whirlpool. It would be no meager boast to say that they have quite a few strings attached to wherever they go.
Despite their young age compared to the rest of the families scattered throughout the Hidden Villages and the Five Great, they have managed to gain some respect through their efforts. Something that they take great pride in, while some would view them as nothing more than glorified prostitutes or ''broodmothers''. But they know better. They know that their webs extend far more than one could imagine, threads so thin that they are invisible to the naked eye.
... I might've used the spider motif a bit much there.
So whatcha think?