Shini Yasui Kōshaku Reijō to Nana-ri no Kikōshi - Chapter 131 - Association of Mysterious Story Collectors (part one)

A world where taming monsters is the mainstream to survive. Cloud, an orphan from the slums, suddenly recovered his memories of a previous life. A man living on modern Earth, and an avid fan of sexy monster girls.

Running away from the constraints of his current life and starting anew, he decided to throw away his name and live as just “Will”.

……………………………………………………………

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Waking up, Kim Hajin finds himself in a familiar world but an unfamiliar body.

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

At a young age, I became a thousand-year-old bastard.

Ding! Congratulations to the host, you have obtained the phagocytosis synthesis evolution system.

An earth dragon was found in front, devouring synthetic evolution, the earth dragon tortoise.

From then on, my wonderful career began…

- Description from novelbuddy