The Heroine is My Stepsister, and I'm her Final Boss - Chapter 18: Edge Of Evil

In the beginning, when they all thought that she was “he”….

ML #1: We will be brothers for life!

ML #2: This time I’ll reluctantly let you have the #1 seat.

ML #3: I will properly repay royal teacher!

ML #4: Ah Rong is my closest little brother, I trust him.

Afterwards…

MLs: I’m seriously such a fool.

MLs: What do I do, I think I’m gay. I fell in love with my bro/rival/teacher….

Afterwards….

MLs: I’m straight! As straight as steel!

Note:
MC is a girl crossdressing as a boy, she knows how to fight, and naturally possess the gold finger halo from the author.

All the ML(s) is the same person, 1v1, sc, HE

- Description from Novelupdates

When Li Xianyu was 20 years old, he received his father’s inheritance, an 18-year-old great-grandmother who was incredibly beautiful.

Li Xianyu: “Great-Grandma, why are you so young?”

Great-Grandma: “That’s because I died when I was 18 years old.”

- Description from Novelupdates

“Xi Linghun wears the body of Xi Ling, who is about 20 years old with the same name and surname, and instantly becomes a rare male worm!!!
囧–×You must get married as an adult? Otherwise, the system will marry all the females with the top ten matching rates to him!!!
(Noodles tears) In order to maintain integrity, he must catch a bug and get married.
Xi Ling Zhuang Mao: Bad reputation, time is running out, no one is willing to marry how to break it?
His Royal Highness the Fourth Prince: The martial value is outstanding + the appearance is against the sky, how can no one dare to marry? Wait ten years online! Urgent!
Passionate and arrogant × cold belly, black and handsome story ^^
Whenever Aubei couldn’t stand Xi Ling’s hairy hands and feet, Xi Ling showed his furry tail and ears aggrieved. Well, the fourth prince is a plush control.
(The main attack, the main attack, the main attack in this article) are emphasized three times!
This article is also known as (777 years of high-profile dog abuse) sweet + pet + child + 1 v 1
Background Zerg: male, female, sub-female
Insect species: grass worms, meat worms

Content Labels: Strong and Strong Son Mecha

Search keywords: Protagonist: Xi Ling ┃ Supporting role: Obei ┃ Others: Fess, Xi Feng

- Description from novelbuddy

All it takes is one monster for the world to go to ruins.Life as Nadine knows it goes to shit and she has to accustom herself to life underground, that is until an accident forces her out into the real world.Caine has no idea why he saved Nadine.She is everything he hates- rich, spoiled and entitled- and yet, he couldn't just let her die.Living outside is hard enough without having to save someone else and yet, he does it with Nadine.Thrust into a world that she has no idea how to navigate, Nadine is forced to rely on Caine.Her life is literally in his hands.They soon realize that maybe the monsters are the least of their worries.