Zhang Liuxian was always a big businessman, ever since he was young. He started out in a big firm as an intern and soon gained the knowledge to open up his own like it when he was a few years older. He was powerful and cunning and it didn't take him long to become one of the most successful businessmen in Taiwan. He was of the envy of many women, mostly for his wealth, and he knew that and exploited it to get his own way. So much so, it wouldn't be an understatement to say his company had shares in every sector of Taiwanese society.
One night during his usual escapades of leading women on, Liuxian met a woman who claimed to be a tourist, Oizys in reality, and he was attracted immediately. There was a strong aura of her and she seemed unfazed by whatever Liuxian said. She became his new conquest to tackle and, after a few weeks of a long and gruelling wait for him, Liuxian and the woman mated. Like those before, she left the following morning and he assumed he'd never see her again, to which he was oh so wrong. Not even a week after the two parted ways, the woman arrived on his doorstep and handled him a bundle which, inside, had a little baby girl that was unmistakably fathered by him. The woman offered him no explanation as to how the child was birthed so quickly and left with a small note with the instruction to read as and when the girl reached thirteen years old. Confused, but knowing a child abandonment scandal would wreck him more than him having a daughter, Liuxian took her in and named her Meiying.
Liuxian took to his daughter fairly quickly and soon fell in love with the father lifestyle. Juggling being a prominent CEO on top was a challenge but it was one he rose to, not wanting to let his new bundle of joy down. There were a few things that alarmed him about Meiying - most notably her not seeming to register pain of any kind - but he took little notice of it and instead focused on the good parts about her, like her smile and sociability. Three years later, he met another woman in a similar way he did to Oizys but this time it was unintentional. He didn't intend to hookup with anyone but years without doing so meant he was desperate and, sure enough, not even a week later after the one night stand he was handed another child but this time a boy. Seeing no choice, he took him in and named him Yuchen.
Meiying rose to the challenge of being an older sister, doting on Yuchen whenever she had the chance. And, for the most part, that was completely fine but Liuxian noticed she had a tendency to not know how hard she would playfully hit him, still having no concept of pain. The suppressed worries Liuxian once had began to crop up again but, probably hoping it was a phase, he ignored them once more. No matter how many punishments he gave Meiying, however, no concept ever came about and slowly Liuxian began to get worried, especially as the two got older and play fights became more common - Yuchen could attack Meiying all he wanted, injuring her in ways that should have made her cry, but she never would react but when she retaliated, Meiying never knew how hard she hit.
The final straw came when Meiying showed how truly apathetic she was in general. Liuxian had taken her to a counsellor in an attempt to see what was wrong with her but all that could be concluded that she was extremely apathetic despite being only six years old. That, paired with Yuchen's growing fiery temper, Liuxian found it too hard to handle and sent his children to live with his sister in Toronto. The two adopted English names to go along with their new lives; Meiying became Luna and Yuchen, Aiden. By a stroke of luck, their aunt was a demigoddess herself and was able to at least sense a demichild aura from the pair, albeit not knowing who they were children of. She looked past Luna's apathy and Aiden's fiery temper, pinning it down to traits they had no control over inheriting.
Objectively, Luna became a lot happier when she lived with her aunt than she ever did with her father; whilst her father was dismissive, cruel and had little compassion, her aunt was the opposite and tried her best to fully understand Luna and where she was coming from when she was particularly apathetic. And perhaps compassion was all Luna needed; for a while her apathetic tendencies seemed to go away or, at least, weren't as intense as they once had been, seemingly all fitting into place.
Luna picked up English rather quickly and, by the time her first monster attack came around when she was 12 (three demigods in one place is never a good idea, let's be real), she was fluent and any accent was undetectable. Speaking of, Luna's first monster attack was a group of hellhounds that attacked her, her aunt and Aiden when they were out in the park. Her aunt being skilled in combat, managed to take down two of the hellhounds with a passing satyr taking down the third, ensuring the safety of the two young demigods. That night, Oizys visited the household when Luna and Aiden were asleep, giving their aunt a sword in the mist form of a bracelet to her to give to Luna. And, from that day on, Luna was trained in how to wield it at home, however still unsure on why she had to and why monsters were attacking her.
Monster attacks were relatively easy for Luna growing up - for the first half of them her aunt handled with ease and, for the second half, she helped Luna in taking down the monsters herself. Of course some monsters posed more problems than others, causing her aunt to have more of a role in taking them down but, by the time Luna was sixteen, for the most part she herself was taking them down and prevailing as a promising demigoddess. Of course her apathy still was alarming, so much so that her aunt took the time to look through the Pantheon to find a reason and, unknowingly, placed Luna as being a child of Oizys. With that provisional heritage in mind, her aunt began gearing her up for Camp.
The process of readying Luna was one of two years. It wasn't because Luna wasn't ready or anything of the sort, but more because her aunt wanted to make sure she had the knowledge that would give her the best head start possible for life at Camp. Luna learnt basic Ancient Greek phrases and learned how to wield her sword with more prowess. She was introduced to the Pantheon at large and slowly was told that she was a part of this world. When confident that she was ready, Luna along with her brother were taken to Camp where they were claimed by Oizys and Aetna respectively and made the respective first head counsellors of either cabin.
In fact, the curiosity continued for the next few years, finally rounding itself off as Buckton neared his fourth birthday.