sin system: demonic harem after reincarnation

"I'm a Summoner" - Ariana Ariana is a young girl who survived a great war after her parents and brother sacrificed their lives to save her. She then sees a Grimoire which makes her more powerful and seeks to become a demon lord. She now has to protect her country as well as the world at large. In this world, how will she be able to protect her country from other demons who plan on getting the Grimoire from Ariana? Join her on this magical adventure to enable her to protect her country.

BOOM!!! An atomic bomb goes off, lucky for Cumas, a window saved him. It appeared just in his class and told him to go to a bunker and when it went of, Cumas felt lucky having his own system protecting him, or is it? He has to complete quest to survive if he wants to stay on the safest place on earth, the bunker.

Dorian was betrayed by his wife when she got to know that he was nothing but an illegitimate child of an ultra rich family. Being left with nothing, he was about to end his life when suddenly he heard a notification sound. [Host detected… Introducing the Million Dollar Wealth System. ] [ Spend 1 million in one day or die ] Dorian, fueled by anger and vengeance, decides to get his revenge on all those who wronged him, “I am coming to get my revenge, you losers.”

Pavel Antonov, a delivery man leading a happy life with his beautiful girlfriend, Evane, is deeply shattered when he witnesses his girlfriend's infidelity. He experiences humiliation and eventually faints. Pavel wakes up with a mysterious message in his brain: "System activated." On a journey to comprehend the situation, he becomes entangled in an intrigue that unveils a dark secret, ultimately altering his life. He starts taking revenge and earning good money, he is no longer the poor man he once was!

Frank Hart lived a peaceful life with his mother in the lonely town called Marble, he had most of the things he needed and life didn't seem to be harsh on him without a father. Deep in the forest of Marble town was an underground settlement but it was abandoned. The body of a tyrant was buried beneath it, but it wasn't locked up forever as the duration of the spellbinding the tomb was complete, the beast lord broke out and along with his ugly beasts turned the world into a state of dilemma. Frank had to flee along with his mother into one of the few refugee camps that the humans had. There was a war, a war between humans and the beast lord, with the population of humans declining Frank was forced to go to war. With no experience at all on how to fight, he struggled until he was at the point of death. "Is this how it ends for me?" Frank grunted as he pulled himself across the hard floor. A drop of blood fell from his forehead and landed on the blue necklace on his neck, a gift from his mother. The necklace began to glow and at that point, he lost consciousness. [ System Active ] [ You have obtained the wonder system ] P.S: The system is not the main focus of the novel.

Lucius is a man who has seen how the world ended before his own eyes. Successfully seizing the supreme artifact called the "Eye of Time," consuming it and returning to the past. Here, the man who had seen the world's end began to plan. "Ten years from now, the great epicenter will break. I must gather all the strongest systems before that time comes." One by one, the man who already knew many secrets hunted down the systems scattered in his world. Uncover the meaning behind the system. Set foot back in a world where superpowers were taken for granted.

Benedict Muller was born in the modern time when the evolution of technology and science made waves in human genetics and the universe. Everyone has special powers. There are rankings based on the level of their powers. The possessors of these powers are called Aetherians, and they began to rule civilisations around the world after a major change. Only rich families will always excel as they influence to be in control. Poor people like Benedict Muller could only accept the conditions, especially since his family lost their wealth. When Benedict was 18 years old, he decided to join a military group to fight and earn a decent living. With last hope and strong determination, Benedict took the test. But before he knew it, the greatest evolution of science happened. The system synchronised with Benedict. It was time for Benedict Muller to rise.

When I woke up with a hangover, I found a handsome and naked stranger sleeping beside me. --- I’m Tanya, a surrogate’s daughter, an omega with no wolf and no scent. On my 18th birthday, when I planned to give my virginity to my boyfriend, I found him sleeping with my sister. I went to the bar to get drunk, and accidentally had a one-night stand with the handsome stranger. I thought he was just an ordinary werewolf, but they said he was Marco, the alpha prince and the most powerful Lycan in our kingdom. ‘You slut, you’re pregnant! Fortunately, Rick is kind enough to let you be his mistress and save you from shame.’ my stepmother said, tossing a pregnancy strip on the table. Rick was an old pervert. No she-wolf could keep up with his sexual demand. No she-wolf could survive with him more than 1 year. When I was in despair, Marco came to my rescue. He got down on one knee, took out a ring and said he would marry me. --- I thought Marco married me because he loved me, but later I found that was not the truth…

A story of a soldier who dies in a war and wakes up a few hours before he dies with a system to change the outcome of the war.

Simon faces humiliation at every turn. Seeing his girlfriend having sex with a popular boy drives him to the brink of a breakdown. A brutal beating makes him question his worth. Satisfaction System lures him with the promise of power and greatness. With all the women at his disposal, will he go for pleasure or revenge?