MTL - From Mortal Flesh To Smashing Planets - Chapter 185 You Ying

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.

Fang Zhou transmigrated into a matriarchal cultivation realm where jade-like beauties hold celestial swords - and all the power. His first act? Tearing up his own betrothal contract.In this world where men were inferior and women were esteemed, the righteous were women, the villains were women, the cultivators were women, and even the gods who created the heavens and earth were women.Female warriors robbed the rich to help the poor and explored the world with their swords. Men, on the other hand, had to be cautious when going out so that they could protect themselves, lest they be robbed of their wealth and dignity, leaving them with nothing.Transmigrating into such a world, Fang Zhou, a handsome man who was desired wherever he went, felt immense pressure. Girls wanted to play with him and even tried to capture him and take him home.For the sake of his own life, Fang Zhou had no choice but to fight against women to the end.”Get lost, you annoying woman! Don't disturb my cultivation!“

On the surface, he is the aloof and standoffish patriot whose sole purpose is to serve the nation. On the darker side, he is an invincible, powerful and mysterious man.