The Devil's Harem - Chapter 20 - Alex, The Disappointment

A former sporting rifle shooter genius transforms into the ‘Juvenile Butcher’. While originally supposed to have received the death penalty, he was instead fortunate enough to have entered a secret and highly regarded armed force, throwing himself into the ‘Nirvana Project’.

After a period of 10 years, he now has time to freely recover. Having trained until he had excellent military and martial skill, he sweeps through various military districts and returns back to his hometown. Under the monitoring of a beautiful female cop, he re-establishes his family’s bodyguard service, protecting beauties and moving unhindered, his achievements causing the fame of his outstanding, god-level bodyguard service to resound across the world!

- Description from Novelupdates

The protagonist fell asleep while playing an online game. However, he awoke in a strange world with his game character’s appearance. In a state of shock, he noticed that he was equipped with nothing but his strongest weapon and armor. To make matters worse, our hero’s appearance was changed by the special avatar skin『Skeleton』when he entered this new world. The protagonist wanted to live without drawing attention, but he got acquainted with the dark elf Ariana and received her request.

Song Lianhe transmigrated into a book, becoming the Villainess and legitimate daughter of the General Mansion, the Crown Prince's fiancée, and the female lead's stepping stone. Her existence was to use her ignorance and foolishness to highlight the female lead's intelligence and kindness; her repeated unrequited love also drove her completely insane, and in the end, she was tormented to death by the male and female leads working together...Song Lianhe transmigrated at the critical moment when the Villainess tried to drug the female lead, only for the plan to be cleverly thwarted by the female lead, resulting in the Villainess losing her own virginity instead.In a dilapidated temple, while “saving herself,” she said to the paralyzed man: “Don't worry, I will take responsibility for you...”Afterwards, the woman picked up her skirt and fled. The villain opened his eyes, his gaze filled with a cold and sinister venom: “I want her dead!”

This is a world where science and magic coexist.

Some people here seek powerful magic, and some seek eternal truth.

A science tyrant who came from another world, started as a little librarian, with magic in his left hand and truth in his right, kicking the door of the new century with one kick.

Some people call him the forerunner of magic, some say he is the founder of science.

Some people describe him that way.

In the new century, Blair is a symbol of evil.

- Description from novelbuddy