My Multisystem In Isekai

Devon Arias witnessed all of his family got brutally murdered in front of him. When he actually become a sacrifice for Demonic Summoning Ritual, Devon sabotaged the ceremony and made a pact with seven demons at once so he can exact his revenge to everyone who responsible for the death of his family. The pact is done and suddenly a bright transparent screen appeared in front of him. Devon got a system to utilize the power of 7 demons inside him. What will happen to Devon next? Will he be able to control the seven demons or will he be controlled by them? What about Devon's revenge, if the demons secretly have a secret plan to rule the world?

Kyrian Christopher, rich son of Julius Christopher. Rejected by his Father for gambling with their family investment at the age of 16. Meets Elizabeth Grey,, Rich daughter of the Queen's. heir apparent to the Queen's empire. Kyrian fell in love with her and got ill treated by the Queen's. he was made to serve them because of his poor status year's later, Kyrian's family got into an accident which led to the death of his two brothers, leaving his parents as the survivors. Mr. Julius had no option but to will his wealth to Kyrian. Months after taking his position in his father's company, Kyrian became the richest billionaire and decided to revenge on the Queens read to find out more.

Lucas struggles hard to provide for Lydia his wife but when she finally lands a lead role as an actress, she throws a divorce paper at his face, but Lucas who is madly in love with her is not ready to let her go despite how many times she cheated and abuse him. When he finally signs the divorce paper, he receives a message, it turns out he had received fifty trillion dollars in his account from the lottery he played and now Lucas will stop at nothing to take revenge on all those who had humiliated and looked down upon him.

Stefan's poor and miserable life turns into the opposite in one night when he kills his father-in-law. Stefan is married to a woman known as Dasha, the heiress of the Bratva company. Stefan becomes a servant in his wife's house because he's poor and doesn't have any power to fight back. Until one night he's almost killed but is saved by a ring he wears. The ring changed Stefan's life and made him a gifted person.

Ethan's treated real bad by his rich wife, Amelia and her Family . One day, he watched helplessly as his wife cheat on him in their matrimonial bed with another guy, while forced to cook for them and sent on errand to buy condom too: Oh, yes. You must prepare a special dinner tonight. Richard loves the lobster risotto. Don't mess it up this time. And, um, make sure you buy... condom on your way back from the market. You know, just in case." "Condom? And who is Richard? Amelia, this is getting out of hand. I can't keep doing this." "Ethan, don't be difficult. This is what I expect from you. Just do as you're told, and maybe you won't mess things up for once." "I'm not your servant, Amelia. This has to stop. I won't be a part of this anymore." "Oh, please. You're just a lowly cook. Who else would want you? Now, do as you're told, or there will be consequences."

"Just three years" He told his parents, "I'll avenge your unjustly deaths." *** *** After his parents' death, Ryan was went into hiding, changed his identity, getting married into a family that hates and ridicule him every chance. Much to their anger, he doesn't work, looks ugly and is poor. He is going to make them grovel on their knees and that time is now! Nobody knows, he's the son of Galvani, owner of the first ranking Company in the country.

Shihab is an average guy who dropped out of high school after his father left his family. He did so to support his younger siblings and his sick mother. One day, after his boss forced him to work extra hours, he was attacked by zombies. He escaped from the factory and jumped from roof to roof to survive, but he eventually fell and broke his leg. Surrounded by zombies and desperate, he made a last wish: to survive and reunite with his family. Suddenly, a system screen flashed before him and gave him a choice: to survive and become a hunter, or to reject the offer and die."

George Lockwood was that one man everyone loathed. He was from a poor background and always worked for the Wilson’s as a cleaner. After he saves Mr. Stefan Wilson, Rita’s granddad and the eldest of the Wilson’s family from getting killed, Mr. Stefan decides to reward him by making him a part of his family. Soon Stefan travels and the Wilsons start to maltreat their supposed son in law. Years later, George escapes their brutality and is now addressed as the young master in country Z.

For others it takes dying and reincarnating for them to get a system but what happens when you get one without dying. Aron Michael is an average student set to graduate within a week, but he was expelled for a random reason. Due to that he had a heavy student dept and no diploma to help him earn the money to pay it back. But one day he got a system that called itself the [Advanced Tech System]. follow the story to watch him develop from your average joe to him being the owner of the largest company in the world.

Lucas Abnett, the aimless son of a business tycoon, finds a new sense of purpose when he meets Sophia Burner, who inspires him to take an interest in his family’s empire. But his world is shattered when Sophia betrays him, assisting Viktor Drago, the leader of a shadowy organization, in a brutal attack that leaves Lucas' entire family dead. Barely surviving with the help of his father’s loyal bodyguard, Kenji Kishimoto, Lucas is left scarred—both physically and emotionally. Driven by revenge, Lucas spends five years training under Kenji, adopting a new identity as Levi Kishimoto. With his new skills in martial arts and business, Lucas returns to America determined to bring Drago and Sophia down.