[Harry Potter] Muggle-Born, But a Slytherin

On her eleventh birthday, Minora Xilin received, in addition to plenty of jewelry and fine clothes, a pony, a soft-furred cat, and an estate of her very own, an invitation from a mysterious world.

From then on, the doors to magic opened for her.

In Minora's life, which had been almost too smooth sailing, the only thing that troubled her was being sorted into Slytherin for her excessive ambition.

Oh, cunning and ambitious Slytherin... It suited her perfectly, but revealing her ambitions too early was like showing her hand in advance. That was hardly a good idea.

By comparison, the classmates who tried to demean her bloodline were a trivial nuisance.

"I hear someone among us, in a moment of stupidity, used the unfair term 'Mudblood' behind my back."

The girl sat on the sofa in the common room, her voice low and gentle, a sweet smile on her face.

"I think perhaps I should explain what that word means..."

Her glassy blue eyes reflected the flames in the fireplace, narrowing like a cat's.

"It's what you call the useless wretches I've trampled underfoot, the ones who can't even crawl out of the mud."

Muggle-born Slytherin x Diary Boy.

Next generation. The male lead appears late and has little presence. Romance won't begin until the later school years, so take your time.

A very Slytherin-like Muggle-born heroine. She's incredibly, incredibly, incredibly powerful. The reason I say it three times is that she's a perfect player, maxed out in every way, from wealth to physical strength to magic.

On top of that, she's maxed out in intelligence, looks, and luck. She's a Mary Sue forged with an ultra-powerful golden finger, if a controlling nature and ambition can be considered virtues.

Content warning: The heroine is chaotic evil, a smiling schemer, and a self-serving opportunist who stops at nothing to achieve her goals. She has sound values but doesn't change her ways when she knows she's wrong. She's selfish, likes to play clever little tricks, and is a love cheat (?). She'll date other people before getting together with the male lead.

The story runs from first year through graduation, but the plot will butterfly away the Chamber of Secrets and the basilisk. (Merlin preserve us, let the child keep living quietly underground.)

Theme: Study hard and don't date too young.