Slay the Gods: The Fate Modifier

Lin Yunze was a high school teacher. One day, he got so worked up while reading a novel that he stood up too suddenly, fainted, and unexpectedly transmigrated into the world of Slay the Gods. He also became bound to a System called the Fate Modifier.

Feel free to ship any couples you like.

Two male leads.

I usually change things that leave readers feeling unresolved.

There may be some OOC.