An active, character-driven Hogwarts experience set in the early 2000s. Unique items, plots, and features. Non-canon; this isn't Harry Potter's story, it's ours.
Cynthia is British-Korean. Her father's family immigrated to Great Britain in the 1800s, changing the family name from Yoon to Rushton. Her mother's side of the family immigrated in the 1960s, keeping the traditional naming conventions.
Her father (Richard Rushton the Third) is a Muggle primary school teacher. Her mother (Kang Hayun) is a Squib shopkeeper. They married against her maternal grandmother (Kang Jiyun, a witch & retired professor)'s express wishes, but Grandmother has come around to Richie's charm since then. The Rushton side of the family (Grandpa Rich and Grandma Cynthia, Uncles Robert, Rupert and John) is painfully ordinary, but loving. The magic all comes from the Kang side (Grandmother, Grandfather Yongbok, Aunties Nayun and Soyun and Uncle Seungcheol) it seems, though Grandpa Kang is also a Squib.
Christopher (21) and Ash (17) - her brother and her gender-fluid sibling - are both older than her. Chris is at university studying to be a physicist and Ash is working on graduating college with a chef's certificate.
Victoria (9) and Alexander (4) are younger than her. So far, Al is the only one who seems to be showing any signs of magic, and Cynthia (who very much enjoys getting all the undivided the attention from her grandmother and aunties when it comes to magical things) is very glad that she will be done with Hogwarts by the time Al's old enough to start.
While Cyn loves everyone in her family, the family members she gets along with the most are her dad, Grandmother Jiyun and Ash. When she's home, she tends to gravitate towards them the most.
Though Cynthia herself is unaware, Jiyun views Cynthia as being very much like herself at a young age, which is why - despite Cynthia's adoration - she's always a little harder on Cyn than she is on Cyn's siblings.