is it okay for an antagonist to save the world?

"Greediness comes with a price. It will bear the fruit of vengeance." As John Percy survives the murder attempt by his in-laws, he swears vengeance. He will do everything to take the life they took away from him. Along came the Grim Reaper of the AI Industry, Hyalou Jean Porter. She assured the O'Briens will feel the highest scale of the pain of suffering, an offer that John Percy can't seem to refuse. But the offer has a price of its own.

Maltreated and hated by my in-laws, I am back to fulfill the law of karma. BEWARE MY RETURN AND REVENGE

A Gaming legend dies and reincarnates as A NPC who doesn't have control over his own Body. His fate changes by the Mysterious System's appearance, which helps him to reach the Peak when he dies as an NPC.

[ Doomsday finally befalls the world, and a global announcement resounds throughout the earth, declaring that all humans from age 13 to 65 should participate in a Universal Survival Game to save the earth from being erased entirely. If all humans fail, their home planet will be turned into another hunting ground with all living beings on it degenerating into prey, like any other world and their inhabitants that failed before them. ] In a university dormitory, a 19-year-old young man, Jason Shemrite, also hears the announcement that rang directly in his ears. And before he could express his astonishment and discuss it with his roommates, he was dragged into a new space within a blink of an eye. When he re-opens his eyes, he finds himself in a small, simple and nearly empty room with only a door inserted into a wall. To his relief, he finds a metal axe at the corner of the room. Yet that is not all. Everyone awakens an initial Talent to help them survive the coming Doomsday, and Jason was one of the lucky few to obtain a high grade Talent. [ TING!! ] [ Congratulations to Player ****** for having awakened an SSS grade Talent - Infinite Extraction ] "What? SSS grade?" Join Jason as he explores the coming Doomsday with his SSS grade Talent, and watch how he uses it to the best of his abilities. To lengths no human mind, nor paranormal could imagine. Watch as he sets on a journey where he either becomes Supreme over Doomsday, or proves whether Doomsday is truly Supreme over All.

Blaze Morgan an orphan studying at one of the top universities in the city on scholarship. He was looked down upon by everyone around him. When one day, he discovers his girlfriend has cheated on him. But, what will happen when he suddenly finds billions of dollars credited to his bank account? When the orphan kid will find out that his real identity as the sole heir of a multinational corporation. Will he take his revenge from everyone who insulted him? Or will he start a new life?

The day a poor, despised commoner was recognized as the Lost Son of Forbes and Next in line heir of the wealthiest company in the world, he was abducted to be killed. Fortunately for him, he was rescued. However, as he continued to rise to the peak, his enemies continues to grow stronger, his vicious step mother and her villain son, inclusive

She doesn't know this yet, but he is the richest man in the entire world.Marcus Coleman is the matrilocal live-in husband of Vivian Lorimer, the belle of Cromford City and a member of one of Cromford City's upper-middle-class families. However, he is also the Pantheon's Drakon—a position that enables him to shower anyone with luxuries unimaginable to humankind.As Marcus and Vivian's wedding anniversary draws closer, the taunts directed toward them are vicious as ever. However, unlike all the previous disappointing years, this year, Vivian is in for a surprise. A mysterious supreme billionaire appears, showering her with gifts one could only gaze at in envy. As the tensions in the Lorimer family reach an all-time high, can Vivian simultaneously save her family and find out the identity of the billionaire before her world comes crashing down around her?

“And who do we have walking into class late like he owns the school?” Jake Sullivan, the son of the world’s richest man, said out loud taking the attention of the students in the class and putting it all on Joe Cole. “Of course Jake, he owns the school. All hail Joe Cole, King of the Poor and Master of All Miserables, the Great Pauper and Beggar!” Another student shouted, banging his desk to make a mockery of Joe Cole. The entire class burst into laughter, mocking him to the highest level. “Hey Cole, quick question. When will you ever be rich like the least of us?” Joe Cole’s humiliations at King & Queens University only grew higher and so by the day. However, at the height of his frustrations, Joe Cole made just one phone call, and the President of the United States appeared at Kings & Queens University with his motorcade. Finally, Joe Cole had become crazily rich and everyone called him, “THE NEW MONEY KING!”

Follow the life of Sakamo Ryu on Earth, where he is Sakamo Ryu, a fifteen-year-old boy with ascendency of English-Japanese.  His other life is as Alex Brim, a Hero for Hire on the Magical World Azurath to where he can travel by using a magical pendant.  His help is needed from time to time, because of the Magical Voids that appear in the sky from where Monsters fall, making the lives of the different species that lives there, a very hard one.  … Alex shouted to the Orc, surprising everyone, “Eat him already! He is in my way, I want your head and the pretty Magical Orb you have inside you! You are not dead already because that dumbass is still there, but as soon as you kill him, you are all mine!” The Orc let his hostage go that fell on the ground with a muffled bump. The Orc raised his mace to the sky and screamed, giving the signal for the Goblins to attack. At the same time, Alex whispered, “Give me a little of your strength, Shinatobe.” A small dot of light near his right ear answered in a low voice, “As you say, Master.” ...

It's ten years after Danny Allen's family villa was attacked in Oakville and his whole family butchered and burnt to ashes. Years later, Danny Allen decides to retire as the General in charge of the dreadful Phoenix Elite Forces to look for the girl that risked her life to save his life from the attack and hunt down all those who plotted the total obliteration of the Allen's, even if it's the last thing he does.