The Heroine is My Stepsister, and I'm her Final Boss - Chapter 5: "The Language of Violence"

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

Lu Yao accidentally stumbled upon a pixelated game where he played the role of a deity, only to discover that this game connected to different dimensions.The 'sacrifices' in the game would manifest in reality, and the 'blessings' he bestowed could also reach the game world.As an apprentice deity, his options were limited to creating various natural disasters.That is, until he reluctantly revived a supermodel apostle, and the gameplay underwent a slight change...

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.

The all-powerful boss is stripped of his identity again!One is handsome while the other is proud; the two-faced refined rascal versus a cynical girl with hidden identities.Everyone secretly jokei that Master Mo’s wife is an ignorant and incompetent little tyrant.Bad at her studies? Lu Mian emergei as the top student for science at her college entrance examination.No talent? Lu Mian shows everyone how competent she is at multitasking by playing the piano with one hand, and painting with the other during a live performance.A prodigal? She makes a small fortune in just two days with her limited knowledge.Boxing, Go chess, appraising treasures, car racing… Bring it on! She can do them all.The soft-spoken Xiao Qimo adjusts his glasses with pride. “Who else has something to say?”One of his subordinates raises his hand cautiously. “Master Mo, your wife seems to be the one who single-handedly destroyed the illegal laboratory.”Xiao Qimo looks at his wife who is quietly practicing calligraphy. “That’s impossible!”It isn’t until…During the general meeting for the International Elite Organization, both Xiao Qimo and Lu Mian wear a mask. They take the stage and succeed as the organization’s Chief and Deputy Chief, respectively.The Deputy Chief beside me looks like my wife. This is Xiao Qimo’s thought.The Chief looks like someone I know. Lu Mian is thinking the same thing, too.Soon, the newly appointed Chief is seen blocking his deputy at the ladies’ room.What happens when two strong and uncorrupted individuals fall for each other?