It was the summer of 2017 in Boston, MA, USA. Sarra Summer was a British Witch who was on vacation in the United States on a road trip with her friends as a graduation present from her parents. When they were in Boston, Sarra and her friends went out for drinks in the muggle part of the city with fake IDs. Sarra caught the eye of a Navy Sailor stationed at Portsmouth Naval Shipyard named Richard Seymour - Richard was attractive enough, especially when Sarra was already drunk so the two wound up spending the night together, luckily, they did trade numbers. Sarra left Boston the next day and quickly forgot about the whole thing, until about a month later when she and her friends were in LA towards the end of their road trip, when Sarra started feeling sick and was puking a lot in the morning. Very afraid of what that could mean, she got a pregnancy test which confirmed her worse fears. She was in fact pregnant. Trouble was... there was at least five guys that could be the dad.
Sarra quickly contacted all the guys that could be the dad, there was exactly six. She then made them all get a paternity test and it turned out that Richard was the lucky winner. Because of Richard's career in the Navy, and not wanting to look like the dumb and impulsive 21 year old he was, he proposed to Sarra. Sarra, who was equally impulsive and also not a huge fan of having the child of a man she wasn't married to due to her traditional upbringing, accepted. Her parents were not huge fans of this at first, but eventually they came around and started to begrudgingly like Richard.
Nine months later in March of 2018, they had their oldest son, and on a snowy Tuesday in early December eight years later, they had Kai.
Kai was a very loud baby - in fact, they're just loud in general. Once they learned to speak, they often talked louder than necessary - they're just naturally able to project their voice well, which can come in handy, but while they've gotten better at speaking quietly, they do sometimes have issues keeping it at an appropriate volume.
They were first introduced to Popeye the Sailor Man very young, and it was instantly their favorite cartoon, despite its shortcomings. Kai's parents never had any trouble getting them to eat their spinach, and to this day it's still their favorite snack, and it isn't uncommon for them to quote Popeye just for the fun of it. Popeye is their role model - besides their dad, of course.
Kai took very quickly to all things nautical, picking up swimming and sailing without issue, but navigation has always been their favorite. They developed a wonderful sense of direction and a profound distaste for GPS.
Their magic first showed up when they were eight. They were swimming in the lake, and they saw something weird-looking swimming off in the distance, so they decided to dive under the water to follow it to figure out what it was. They didn't want to come up for air because they didn't want to lose sight of it, and they ended up casting a crude bubblehead charm unintentionally that allowed them to get close enough to the creature to see what it was. Ultimately, it was just a two-headed frog.
In no-maj primary school, Kai struggled a bit with their grades. The school system wasn't as accommodating as they could have been with Kai's dyslexia, and despite being a very bright student, they didn't test well at all. They loved music class, though, and participated in the choir program. Kai never really knew they could sing before that, and afterward it became one of their favorite hobbies.
At Ilvermorny, to no one's surprise, they were sorted into Pukwudgie. The use of magic allowed them to manage their dyslexia a lot more easily than before, and while Kai doesn't enjoy reading - or listening - to books for class, their grades became much more on-par with their actual skill level. They discovered they have an affinity for water spells and quite enjoyed magizoology.
In the summer of 2038, the family decided they were going to try and do a transoceanic crossing in the family sailboat. Everything was going well, until they were hit by a really bad storm in the middle of the Atlantic. The wind was well over 64 knots and tore the mast right off the boat, leaving them utterly helpless to the mercy of the ocean. Because they were doing a transoceanic crossing, the USCG required them to have liferaft and survival suits for all aboard. Roman and his father attempted to launch the liferaft but the sea were far too much for the rails aboard the sailboat and soon as they tried to tie the painter line to the sailboat, the rail was tore away from the boat. The family had already put on their survival suits but before they could abandon ship, a massive wave slammed down on the sailboat and tore it clean in two, knocking the whole family unconscious and separating them from each other, the liferaft and the sailboat's wreck.
Kai had been so excited for their summer sailing trip, until the storm hit. They were confident that they'd be able to make it through just fine, right up until their parents were declared dead. Even that giant wave didn't get them down - they came to pretty quickly after being knocked out, and after a few moments of being turned around thanks to the storm, they were able to find the general direction of the raft, and after a lot of yelling and a bit of time, everyone was safely on the liferaft - except their parents.
After that incident, the kids took to wearing a gold earring on the left side like their father had, to signify they'd survived a shipwreck. They went to live with their maternal grandparents, who have...mixed feelings about the kids, and next fall they were back off to Hogwarts.