Sorry, Yandere Big Sis, I'm the Hero's Girl

[Bratty little demon × Yandere Hero × Unhinged Demon King | One disastrous turn after another]

Shi Xiaomeng transmigrated.

Summoned to another world, she found a floor full of kneeling nuns calling her “Her Holiness, the Saintess.”

Feeling the disobedient tail beneath her skirt, she fell silent.

...A succubus serving as a saintess? That's like a mouse pretending to be a cat!

Even worse was how this world dealt with succubi: burning them with holy fire for seven days and seven nights, until they couldn't even scream anymore.

“...Is it too late to run?”

Before she could get away, she discovered one good thing and one bad thing.

The good news: her phone said her combat power was “top tier”!

The bad news: the hero of this world was a white-haired, golden-eyed little girl who looked adorable and sweet, but could slice her in half with a single sword strike.

Bai Qi tilted her head and said in a soft, sweet voice, “Are you my wife, big sister?”

Shi Xiaomeng: “As if I'd be your wife! I'm top tier, you know! If anyone's going to be a dog, it'll be you!”

...Then she was pinned against the wall.

“Wifey big sister, you're being naughty.”

Bai Qi held her chin as a flower garland clicked into place around her neck. Her voice was still baby-soft, but her gaze was terrifyingly serious.

“Since you're being naughty~~ you'll have a baby for little Qi.”

Shi Xiaomeng: “...”

Wait a second.

Wasn't something wrong with this scenario?

Even more terrifying, the yandere maniac who had imprisoned her in a basement in her original world had gotten through on the phone.

“Sweetie, where are you? Big Sis misses you so much.”

Shi Xiaomeng: “...Help.”