My wife's sisters want me to make a harem?!

Luke Hellwalker was one of the heroes summoned by the angels to slay the thirteen demon kings, but he was betrayed by the very ones he fought for. He was offered a second chance by one of the previous demon kings turned system at a certain cost. He will become the new demon king. If his only choice was permanent death and becoming a demon king, then so be it. He was going to go back to the beginning and get his revenge on the ones who used him.

Ryan Wilder is secretly married to Violet Crowne, a rising star with the beauty of a Goddess. The bad news? Violet hates him. Her family also treats him like a scum and humiliates him for fun. To make it worse, Violet cheats on him, too. It's a big combo for a life that feels like hell. Then, something unbelievable happens. Peeep! [You have been chosen as TEETS's Potential Host.] [Please state your goal.] 'I want revenge.' [Congratulations!] [Now, you have become TEETS' Host.] TEETS, short for Terribly Excellent Emperor-Training System, will grant him superpower abilities if he completes the missions it gives. [A new mission received!] [Face-slapping Son-in-Law: Acquire $100.000.000 in 24 hours.] [Ability Reward: Unlimited Balance Lvl 1.] [Description: Allow Host to buy everything via online transaction.] Slowly but surely, Ryan becomes a powerful figure with his eyes set on revenge. However, when he is enjoying life and setting his revenge on everyone who had wronged him, his past catches up with him. "My son," the wealthiest man in the States said, "I want you to go home with me and be my successor." Ryan wonders if his life could get any worse.

Greg Chase was a talented man. When he graduated from college, he started his own company and soon earned a lot of money. But just when he was going to have a beautiful life, his girlfriend, Laura, had a conflict with a man who tried to obscene her. To protect his girlfriend, Greg had a big fight with that man.However, that man was rich and powerful, so Greg was put into jail. His girlfriend told him that she would wait for him. But 3 years later, when Greg got out from prison, he found out that his girlfriend was going to marry the man who tried to obscene her!Fortunately, when Greg was in jail, he met a mysterious old man who taught him medicine and martial arts. The old man gave Greg a ring, which is the symbol of the king of a mystery organization.So, Greg will start his revenge on the influential man that snatched his girlfriend.

In 2030, a giant wormhole appeared above the Pacific Ocean. Scientists believed that it was a portal leading to another world besides earth. The United Nations decided to send a drone to investigate this phenomenon, but one hour after the drone entered, disaster struck. The wormhole suddenly became twice as large followed by a yellow gas pouring out. Two brothers, Lee Young-soo and Lee Min-su watched from a Television store, as their mother died while reporting the incident for South Korea's International News Station. ******** With the camera on her, she raised the mic to her lips and started speaking. “Young-soo, if you're watching this with Min-su, I want you to cover his eyes. Don’t let him see this.” Young-soo who was by his brother’s side raised his left hand and covered his eyes. “No!” Min-su protested and tried to remove his brother’s hand, but it stayed firm over his eyes. Young-soo was watching his mother on the television screen with slightly red eyes, as he bit his bottom lip so hard a few droplets of blood fell to the ground. “I want the both of you to know that I love you with all my heart and that I’m sorry I won’t be able to see the two of you go off to college and get married someday.” Tears started to fall from her eyes as she spoke her next words. “Young-soo, I want you to protect Min-su when I’m gone, and... Crash!!” With a violent jerk, the yellow gas engulfed the helicopter causing the cameraman to drop the camera, cutting off the transmission.

Reborn on another planet far outside of the nearest Galactic Empire that was searching for our Hero. His existence already breaks the very fabrics of space and all of creation, yet he sent through to experience another whirlpool of life-threatening problems before the actual problems were dealt with. The Hero originally passes away to be sent forward centuries into the future to awake in the body of the ailing Galactic Empires Crown Prince who shortly passed away before took over the body. From that moment forward, the hero did everything in their power to lead their empire as the Crown Prince, with the belief the new life meant something big, instead all his work was for nought and his own Imperial Familys internal problems caused his downfall and exile as a traitor. Having escaped with the last project he had worked on as the Crown Prince which would have solved many of the issues the Empire faced and helped create a unified Council that controls the Empires within space, instead his sibling’s greed got him killed and reborn once again, this time in the past. Back in a body similar to his old one with the knowledge of the far future and bound with a Primordial System that could make the moon a Death Star and help him create his own fleet of clone troopers with space wizards. He could also recreate the pillars of the old Gods and recreate the Mountain of Olympus and Asgard to serve him. Both on Earth and in Space as the Hero summons legends of anime, video games, science fiction and Humanities perseverance to fight beside him and build a Galactic Empire that cannot be rivalled among the stars… . .. ... https://discord.gg/JCfhhpDp3X

I love someone with all my heart -- the girl of my dreams. But on the day of our engagement, she made an unexpected move and said that she was going to call off the engagement. To make matters worse, a man came and kissed her in front of me, and everyone proceeded to laugh at me and treat me like dirt. However, when they find out who I am, will they still be so disrespectful? I don't even want their mouths to touch my feet!

A young man with a cold personality trying to conceal his past was in his room with his best friend playing the video game "Hero United" when an ad appeared on the screen, transporting him to another world as the villain son of the Smith family. With the ultimate system, ' and his dark heart the world was just a step away from his grasp.

Talon lost his memories after a gastly fatal accident and he finds a new home, although works as a personal guard for the Ontario family's daughter, of whom he falls in love with, but that is cut short by his mother in law, when their relationship is exposed and his life and that of everyone he knew is endangered, he is kicked to the extreme, swearing his revenge but later, it gets more interesting when he recovers his memories only to discover that he is the only heir to the richest man in the world and is the only chaotic Bazillionaire alive.

Alex Thomson is a man who often becomes a victim of bullying and harassment, both physically and mentally. He feels that life is unfair and that nobody cares about him. Every day at work, Alex becomes the target of mockery and amusement from his coworkers. He feels marginalized and lacks friends. These unfortunate events make Alex more desperate and contemplate ending his life. However, suddenly a stroke of luck befalls him. A stroke of luck that will change his life.

Five years ago, after marrying his beloved wife, Noah made a resolute decision to join the military and head to the western front to resist enemy invasion... Within those five years, he achieved numerous merits and led his army to force the enemy to surrender, ultimately earning the title of "God of War"... Five years later, he returned home quietly, only to be met with the harsh reality of a divorce agreement that shattered his dreams... Faced with his wife's heartlessness and the unscrupulousness of his in-laws, Noah decided to give up the marriage. However, when they found out about his true identity, they all regretted their actions and began chasing after him in a romantic comedy-esque scenario...