MTL - Space Doctor: The National Hero is a Girl - Chapter 1645 question mark

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

After her mother’s passing, Tabitha Collins’s father marries a new wife and sends Tabitha Collins to live with a family she barely knows. There, she meets Alexander Foster, the family’s high-flying Eldest Young Master, who wants nothing to do with her. Apart from him, however, the other members of the family loves her and dotes on her. Soon, things began to change. Alexander Foster becomes intrigued by the mysterious and seemingly untamable Tabitha Collins. Who is she exactly? Initially, the girl seems to lack confidence and needs protecting, but as he finds out more about her, he realizes, he's the one with the catching up to do!

Before Wufu was reborn, she had no idea there was such a thing as rebirth. Only after her rebirth did she realize Heaven must have thought her previous life was too smooth, so it sent her to suffer in this ancient land where morality, decency, and the Female Precepts were held in high esteem, pitiful indeed! From being a master jade carver to having her soul transmigrate into a farm girl with a wretched background, she was bullied and humiliated. Even the bun-selling mother advised her that forbearance is gold? Bullshit! She could endure, but her other identity absolutely could not—robbers, swept away; insults to her mother, you're crippled... Wufu has a saying, for every insult and humiliation, I will repay a hundredfold. But what's with this one? He doesn't bully her; he only wants to sleep with her? And he even dares... to mount her? Well, a lord can endure, but Wufu cannot. Mount him back, life or death, a hundred years, neither owes the other anything!

In a world where dungeons loom like dark secrets and monsters stalk the land, Rem’s awakening shattered the status quo. A surge of raw power flooded his veins as the Monster Monarch System bound itself to him, unlocking a terrifying potential.Each heartbeat echoed with the promise of countless souls waiting to be absorbed—skills, abilities, and monstrous strength ready to be claimed.Fuelled by an insatiable thirst for power, Rem set out on a deadly quest, driven by one singular goal: to rise above the chaos and stand at the pinnacle of the world. With nothing but the deadly abilities granted by the System, and a burning will to crush any who dared stand in his way, he carved his path through savage lands and ruthless mages.The hunt for strength never ends. The battle for supremacy has only just begun. Rem’s eyes are set on the throne of the Monarchs, and the Monster Monarch System will ensure nothing stands between him and his destiny.The grind was eternal...