One-Click Upgrade: Super Decomposition System - Chapter 10

Su An was thrown into a world of quick transmigration by his suitor, who attempts to approach him with a different identity.

Hidden dangers can not be prevented, but fortunately, with sweet words and beauty, Su An has won the love of the big bosses from each world.

An indifferent painter suffering from mental illness, a flirtatious bandit young master from a wealthy family, a demon monk with powerful martial arts skills…

To Su An’s surprise: Every big boss is poking my appetite!

The big bosses who got hooked up: …

They all gave a meaningful smile.

- Description from Novelupdates

Lee Jin Woo once lived a dismal life.
He lived pitifully on a day to day basis in his five-pyeon studio filled with mold.

Then, one day, he died in a sudden fire.

When he wakes up, he finds himself inside a novel.
But there’s just one issue…
He had become the novel’s villain!

Draven is a magic professor in a fantasy world. He is also an earl, notorious for his evil deeds and mistakes since youth. His downfall is due to a curse that hinders his intellectual potential and his talents. Eventually, he becomes a villain, losing everything he holds dear: his siblings, fiancée, house, domain, and more. After a miserable death, he reincarnates in the modern world as Dravis Granger.In his new life, he grows up to be a highly intellectual individual oblivious towards his previous life, becoming a young professor in mechanical engineering and a researcher. However, he harbors a strange obsession with creating a game, fueled by vivid imaginings of another world. This obsession leads him to develop a game that mirrors his previous life. Upon completing his virtual reality world, he regains his past memories. Overwhelmed by intense emotions—rage, sadness, and the realization of his past ugliness—he suffers a fatal heart attack.In his final moments, he hears a voice, seemingly from the world itself, offering him a chance to return to his original fantasy world. However, he would only retain the memories of his modern life, not those of his first life’s mistakes. He agrees and is reincarnated once more, this time with the knowledge of a modern mechanical engineering professor.But one thing about the Dravis Granger, he's not just a mechanical engineer professor. Not just a straight, killer genius professor. He has his ideals, and the world is too full of villains for his great idealism. So he strived, with his great mind, he became a mastermind. But not as a villain, but as a person who has lost hope in police and justice, and decided to help the people by his own hand. Collecting victims and invited those handpicked talents to his side, making several insane stunts, assassinating, trapping, and eradicating the scums from the world.But now in this fantasy world, he has to survive from multiple factions trying to kill him, protect his domain, protect his siblings, protect his fiance, and the most important thing.Protect the world.But he hadn't lost the Dravis from the modern world.As a professor at the morning, an earl at the afternoon, and a dark knight at the night._____________________________“You've hurt my student.” Draven stands still, no mana seems to emit from him, but just a single frown. A frown that is enough to make the room's heavy. “As a teacher, you think I would leave you unpunished?”“You seem to think that I care about your position, Prince Hermit. But believe me,” Draven took a slow step. “Not even your father could protect you from me.”

Ajax was an orphan who survives a massacre along with his friends but unfortunately gets separated from them.

Fortunately, after a turn of events, he successfully gains a system which helps him increase his cultivation, but doesn't know what it is called.

But he knows one thing for sure, this system is very powerful and helpful in taking his revenge.

“Whoever you are, I am gonna find you”, Ajax mumbled himself with a disgruntled expression.

In a world where Summoning of an elemental spirit is done through a dream when they are 15 years old, Ajax with the help of a system and his summoned spirits sets out on a journey to seek revenge against the mastermind behind the massacre.