MTL - My Girlfriend has a System - Chapter 137 Cousin's 3 requirements

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

The century long war had just ended and humanity had managed to get their hands on alien technology, sending them years ahead in terms of technological advancement, fulfilling their hope of finding life outside their planet and their desire to dominate these extra-terrestrial existences. The effects of their technological advancement alone wasn’t capable of giving this result.The appearance of mutations which granted supernatural powers among humans was another boon giving them the chance to act out their darkest desires.Their joy took a dark turn when it was revealed that they were nothing more than livestock to the mysterious race, Xillthars, who cultivated them to that level. Like fattening livestock.Shortly before this dark turn of times was a forbidden creature, Kieran who had been born into the lowest levels of a society created by the greed of humans. To him, life had always been hard, but things got worse after the arrival of the Xillthars as he found himself on a trail of shocking discoveries about himself and the world around him.

The uncanny Dao of heaven, the abnormal immortal and buddha, is it true? Is it false? Lost in confusion, Li Huowang can not distinguish.

However, it wasn’t just these that he cannot distinguish, but also himself. He’s sick. He’s very sick.

- Description from Novelupdates

Lin Luo was originally an ordinary college student. But once she crossed over, she came into the land of beasts, where the primitive forest is full of danger.

However, she met all kinds of beautiful men of different races to protect her, and got a lot of love.

Lin Luo: “Uh, different races can have children? Don’t be ridiculous. Interracial love is impossible to have results.”

A group of beautiful men: “As long as you’re willing, you can have results.”

- Description from Novelupdates