This bodyguard is too invincible - Chapter 13 Assassination!

Chu Mu Yun relied on his story of 《Demon Realm》 to become a one-hit wonder in JJWXC, but the him who had written seven mental cases to abuse seven mental cases to death would never have expected that he himself would transmigrate into this shitty novel!
What the hell is this system on the bracelet?
And what the hell is this either propose to seven men, or suffer the taste of a tragic death experience under the hands of these seven people?
I just wanted to write a novel to satisfy my bad interests, who would actually want to get tangled up with a bunch of mad dog sad*st crazies?

- Description from Novelupdates

He was supposed to be just a guardian.But love doesn’t follow rules.After losing his mother, 18-year-old Kai finds himself under the roof of his cold, powerful stepfather, Sebastian Vaughn. What begins as silence turns into lingering glances, late-night tension, and a love Kai can’t run from—even if he tries.But Bast isn’t just any man. He’s possessive, broken, and hiding dangerous secrets… including an ex-lover who wants to destroy everything. As feelings grow, so do the risks.How do you escape a man who says he’s your everything—your father, protector, friend… and lover?

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!

After getting killed on the hands of the mighty nine-tailed fox monster, William found himself twenty years back in time.

At this time, he was a worthless kid, without spirit and weak spirit power. He worked as a porter in a famous academy, serving other disciples for living.

But the one who returned back in time knew this wasn't the end of the world. William had ways unknown to many. So he'll train and get stronger, turning himself into the strongest spirit master in the world.

Starting from such low point, he started his long journey towards being a real powerhouse. Despite using all his past life knowledge, he would be still faced with many challenges in the academy and in the world.

Yet William will conquer them all. His main goal will be to not just be something in this world, but to grow beyond the limits he reached before in his past life.

He wanted to get better prepared for the hideous and deadly enemy that killed him; the nine-tailed fox monster.

In such world and time, he got many years to train and scheme for his revenge. He would never allow the past failure to be repeated once again.

Join William's journey towards pinnacle and see how he crushes everyone else.