MTL - The Sweetest Medicine - Chapter 9 This man is really aggressive.

Athar VonCruz, an orphan, had always been at the bottom rung of the society. He had been bullied, belittled and pushed down for his entire life.Beast taming in this world is not a hobby or a profession but is the only way of survival for a human and to gain power.Athar invests his entire life savings for one of the beast eggs; the only chance he has to rise and get ahead in his life.The egg cracks, and a creature of unknown potential emerges from it. In that pivotal moment, Athar's destiny irrevocably shifted. In that moment, Athar unearths a strange and wondrous secret; a hidden power that would become his ultimate trump card.Read how Athar VonCruz carves out a path out for himself and strives to reach the pinnacle of life.

When encountering demons, a young man with two horns on his head, red hair reaching his waist, and an extremely handsome appearance leads the demons to the front.

Youdou: Actually, I really don’t want to be a master of monsters. This profession is completely useless. My ideal is to become a magic stick…, bah, it’s to become a great onmyoji.

All the monsters: My lord, wake up, you are the leader of the monsters yourself!

- Description from novelbuddy

Ji Chen Ai has always wanted to be a good person until he was physically disabled for some reason.

When he is being neglected by his parents, Ji Chen Ai just smiles. When he is being bullied by his brother, Ji Chen Ai just smiles. However, when someone pushes him and his wheelchair down the stairs, Ji Chen Ai can’t smile anymore.

But why is it during this time, that something came out suddenly and tells him that he must be a good person?!

System: Our goal is — No! More! Bad! People!

- Description from Novelupdates

Years ago, Earth was indoctrinated into the “System.”Earth was not the only place with the System, however. With the System came the other races, Invaders. The Invaders had one goal, to obtain ownership of this new habitable planet. This created a bloodbath, and for years the war raged.This didn't really have much to do with Derek. Derek was kind of a loner. Yeah, he enjoyed the occasional chat or drink with others, but he never stayed in one place too long or really got to know anybody new.Derek did happen to be rather strong. After the years of fighting monster and Invaders alone, he had become quite adept at surviving. One thing that helped keep him alive was his refusal to get involved with others. He rarely cooperated with teams.One day, Derek broke his rules and decided to lend some help, as the mission didn't seem too hard. He should have stuck to being alone.