Ok yeah i can't keep it to myself anymore, it’s I've Been Fixated On The Lees For Over A Year time. Cut cuz oh my bananas this is gonna be long.
OK I think I should start by talking about the backstory I have for them! For context, I see them as half-brothers that share their mom, but each of their dads are also OCs of mine (though only Mama has art).
Somewhere between 24 and 28 years pre-show, Li Shui and David Medvedev (an immigrant from this world's equivalent of eastern europe to Hidden Kingdom) were young adults in love. Both thrill-seekers and silly by nature, the farm girl and the woodcutter were a bit of a flash in the pan, pranking people and having fun. However, once Shui became pregnant, she started trying to be more serious and responsible, as she saw being a mother as a serious commitment that required her to shape up. David didn't follow suit, and their relationship started to sour. By the time Kui (who picks up the nickname Hurricane as an adult) was born, they were both pretty over the relationship and now they were disagreeing on parenting decisions too. They're both stubborn and a bit hotheaded, so things quickly deteriorated. Kui wasn't even a year old yet when they broke up, and since David argued he was more capable of protecting the baby, he ended up convincing her to let him bring Kui with him back to his home; not too-too far, but enough that the farmer wouldn't be able to visit often. To be honest, there were definitely things they could have done to get on better terms. Still, they were both too bull-headed to figure it out, and they separated.
So David goes back to his home and Shui is a single farmer again, but more mature now. It's during this time that she slowly falls for one Hua Min, a local teacher who previously served as a guard for the village. He was someone she'd known for many years, but never held interest in due to finding his more reserved and stoic manner really boring. After the chaos with David, though, she found comfort in his more structured and honestly kind of awkward nature. Somewhere between two and four years after the first, her second son, Rong (later to be called Archer), was born.
When the youngest boy was about three years old, David and Kui returned to their village. It turns out that David had had a really bad falling out with his family back home and no longer felt safe there, and not really knowing what else to do as well as having grown himself since they left, went back to the village he'd lived in with Shui. Turns out that being a single father is hard and he'd been forced to mature, at least to a degree, and had plenty of time to reflect on his time with her and realize that he still liked and respected her and wanted her in their lives. Overjoyed at seeing her oldest again and seeing how David had grown, she welcomed them back, though the man was on a sort of probationary period to see if they could get along again. Min actually took to them well too after a bit of apprehension, he respects David's strength and dedication to the family, not to mention that he's genuinely a good father. Despite their different personalities and David's honestly complex feelings about Shui, the men end up being great friends! By the time a room is added to the home for them, everyone gets along quite well, all things considered.
Them moving back in means that now, her sons (around 5-7 and 3) got to meet! They're relatively similar to their adult selves: Kui is confident, sociable, and enjoys cooking and woodworking, while Rong is quiet, anxious, and snippy for a young child. Compared to the adults, they take a bit longer to warm up to each other. Kui was used to living in a town that had few children his age, but their new home had more and he really wanted to make friends! The boy that lived in his own house, however, seemed intent on sticking with him whenever he could. Kui couldn't actually tell if the kid liked him at all, considering he didn't really talk and was often either grumpy or crying, but he wanted to be near him anyway, so he must like him at least somewhat, right? Well, the local kids that Kui desperately wanted to befriend were not kind about the new boy from far away with a strange accent and a perpetual tag- along in the form of a "baby". This strained the boys' relationship for a bit as Kui blamed Rong for the other kids not wanting to be friends with him, but he quickly came to the conclusion that the little brat seemed to look up to him a lot and was rather lonely, so why should he reject the only one who actually seemed to want to be his friend? In his own way, but still.
So then they actually hang out! Rong shows Kui cool rocks and things he's collected (which just so happen to often look like arrowheads), Kui rambles about the adventures he had in his father's village and on the way here, they go exploring around their village, and Mama starts trying to teach them to cook! Unfortunately, only one I'd then ever gets good at it, lol. Turns out the little one does talk, he's just very, very shy. Non-family people freak him out, and he quickly takes to hiding behind his new brother too instead of just Mama and Dad. Kui's cool with that, he likes the idea of being strong and protecting people, even when said people is just his little brother that bites if you wake him up when he's not ready.
When they're about 10-12 and 8-ish, they're very much the little terrors they grow into: they play pranks on others on town, goof off when they're supposed to be helping, etc. In an attempt to encourage patience and responsibility, Min offers to teach them both to use a weapon of their choice, but only if they behave. They agree readily, and David joins too cuz Why Not, with their choices being rather obvious if you know them: Kui and David choose axes, Rong chooses archery.
The rest is kinda history! They learn their fighting styles, help more around the house and in town, and get better reputations as a result (though they still cause trouble when they feel like it). They've taken on the roles of woodcutter and hunter by the time that the war comes to their village when they're 21-23 and 19-ish, which isn't long before Apetruly shows up to try to negotiate with local animal groups. Of course it doesn't go well, being an Apetruly attempt at democracy, but luckily these local brats are willing to lend a hand! They love showing off, after all. With the encouragement of their family, they go to Big Green, with Shui also joining to assist the gardeners and farmers that provide for the organization. She loves their squad about as much as they do, but thankfully has stopped trying to help parent the others, given that Latifah and Husky have great families and Kowloon finds it annoying. They joined a few years before where we are in the show, making them about 21 and 23-25 when we see them!