Is It Okay For An Antagonist To Save The World?

The world is covered by Memory (a divine entity beyond human understanding). Space gates and mysterious dungeons constantly open, and monsters inside rush out to slaughter humanity. Only Card Masters can fight against them. And this story is about the greatest Card Master. (Main character is intelligent, no harem, no stupidity, ruthless when necessary.) (Yugi Oh + Solo Leveling + Built Desk styles)

Ryan Wolf, a live-in son-in-law of the prestigiousKardashian family, is treated like trash, unaware that he was once a mighty lieutenant general commanding thousands. On the brink of losing his marriage to Kim, his forgotten past suddenly resurfaces. But will it be enough to save his marriage and make those who looked down on him pay?

Marcus Cade was an ordinary delivery man, a useless husband, and an even more worthless son-in-law. At least, that’s what everyone thought. He’d been insulted and humiliated more times than he could count. That is, until an accident reveals his true identity. Marcus Cade isn’t just an ordinary delivery man. He’s the revered Almighty Marshal who disappeared years ago. Now, he’s back and everyone who ever insulted him will surely grovel at his feet!

Christopher Norton spent five years sacrificing everything for a wife who betrayed him and a son who wasn't his. Just as his marriage falls apart, he discovers a forgotten USB containing 5,000 Bitcoin worth nearly $2 billion. Now a billionaire overnight, Christopher will expose those who betrayed him, rebuild his family's fortune, and make everyone who looked down on him regret it. But money brings powerful enemies—and when a mysterious attack targets a CEO he plans to invest in, Christopher realizes his new life has only just begun.

Blurb "You are nothing but garbage." Those were the words Carolina used to destroy her husband. After three years of humiliation, betrayal, and emotional abuse, Dario walks away from the woman he sacrificed everything for. He leaves behind the mansion, the marriage, and the woman who never saw his worth. But Carolina doesn't know the truth. The quiet man she mocked is the hidden master of a financial empire powerful enough to destroy companies overnight. As enemies kneel before him and billionaires fear his name, Carolina realizes she has made the biggest mistake of her life. Now she wants him back. Unfortunately for her, the man she abandoned no longer belongs to her.This type of story would fit very well in the billionaire, hidden-identity, regret-wife, and revenge-romance genres.

Although he was a rich heir, Liam Sawyer had to be sent away by his father to learn some life lessons. He lived as a common man and worked as an employee at a company where he encountered an accident and got an injury that gave him a bad scar on the face. Liam faced humiliation from his In-laws. However, only his wife stood by him even though she didn't have any feelings for him, he swore to make her the envy of everyone in the family. Once he had taken back his place as the only heir of his father's many assets, Liam set out on a revenge mission where he spared nobody who treated him badly.

Aidan Drake has spent three years as the Frost family’s laughingstock—the powerless, humiliated son-in-law, mocked by his wife’s family and despised by society. Every day is a reminder that he is nothing, a “stray dog” in a gilded cage of wealth and scorn. But beneath the surface, a secret roars—an ancient power sealed away at birth, waiting for the right moment to awaken. When a mysterious stranger appears and sparks the dragon within him, Aidan’s world explodes into chaos. Suddenly, the man everyone dismissed becomes a force no one can ignore. As his power grows, the Frosts’ mockery turns into fear, and the world that once crushed him begins to tremble. But Aidan’s journey is more than revenge—it’s a battle for control, identity, and destiny. Will the weak son-in-law rise to claim his throne… or will the world destroy him before he learns to master the fire within?

What would you do if the man you humiliated for five years turned out to be the most powerful heir in the world? For five years, Ethan Black endured humiliation as the Carter family's worthless son-in-law. Mocked as a failure and forced to work as a janitor in his wife's company, he silently suffered every insult. But when a billionaire steps out of a limousine and calls him the lost heir to the world's most powerful corporate empire, everything changes. As enemies plot against him and a rival corporation threatens to destroy his wife's family, Ethan stops pretending to be poor and shows everyone exactly why they should have feared him all along.

For three years, Ethan Cole has been the Whitmore family's joke. He is the poor refugee son-in-law who washes their dishes, wears cheap clothes and takes every insult in silence. His mother-in-law wants him gone. A rich rival wants his wife. Everyone believes he is nothing. They are wrong. Ethan is really Prince Ethan Varenko, the lost heir of the Kingdom of Ardenia. Twelve years ago, his uncle killed his parents and stole the throne. Since then, Ethan has been hiding in plain sight, secretly building a fortune worth billions and a network of loyal followers, waiting for the right moment to strike. Now his uncle plans to close parliament and rule forever, and Ethan has only thirty days to stop him. Deadly hunters are closing in. A traitor is hiding inside his circle. A trained assassin has been sent to kill him, and she has no idea she is his long-lost sister. His wife, Sophia, is starting to suspect that the man she married is not who he says he is. She has given him thirty days to tell her the truth, or she will walk away forever. To save his kingdom, Ethan must reveal who he really is. But the truth could cost him the woman he has secretly come to love.

I’m no longer the useless husband. Every single one of you will pay with blood, with sweat, and with tears. And even when you kneel before me and beg for mercy, I will show you none!