As the daughter of the distillery's beloved White Moonlight, Aizuki Suzuna is thriving in life.
At first she has no parents and mountains of loan-shark debt to repay. Later, she charms all the handsome men at the distillery (Wait, that part's not allowed). She won't even look at anything worth less than ten million (Just kidding).
Aizuki Suzuna was born in Beika Town, Tokyo, and excelled in school.
After her mother "disappeared," her father took to drinking and gambling. On his deathbed, he left Aizuki Suzuna a thick stack of bills.
After a member of the Organization takes her in, she discovers that she's actually from a family that's been rich for generations.
Aizuki Suzuna: Wait, did I get cast as the female lead of a power fantasy?!
Dream on, girl. You're still working hard to become a villain.
Gin x Suzuna. Many original settings, and she has plenty of potential love interests.
The girl really is a bit of a coward, but she's still very capable. She may not get many lines or much page time early on, since the focus is on clearing up her background.
The timeline isn't quite right, because the plot needs to make room for the original story.