Demons

The extremely hideous Joonyoung finds himself duped into an unfair contract with a mischievous succubus. To survive, he must seduce women, a daunting task for someone like him. However, he’s granted a unique superpower to aid in his mission: the ability to become invisible! With this newfound skill, Joonyoung navigates a world of unseen opportunities and challenges, all while trying to outsmart the supernatural forces at play. Can he master the art of invisibility and turn the odds in his favor, or will the succubus's game prove too dangerous?

The extremely hideous Joonyoung finds himself duped into an unfair contract with a mischievous succubus. To survive, he must seduce women, a daunting task for someone like him. However, he’s granted a unique superpower to aid in his mission: the ability to become invisible! With this newfound skill, Joonyoung navigates a world of unseen opportunities and challenges, all while trying to outsmart the supernatural forces at play. Can he master the art of invisibility and turn the odds in his favor, or will the succubus's game prove too dangerous?

Despite being the all-powerful Demon King and considered the strongest in history, Hyram rebelled against the demands of the Demon God for sacrifices and lost his life in combat. Legend had it that he was unbeatable under the Demon God's rule and no spell could defy basic logic. However, after half a millennium, Hyram was reborn as a young human male, despite humans being widely regarded as the weakest of all races. Hyram recognized their immense potential and their ability to challenge even the Demon God. He embarked on a new quest to defeat the Demon God once and for all, and to reunite with his long-lost adopted daughter, Fillfee.

The downfall of a noble family. And a girl who risks her life seeking revenge. “Lady Ayana.” There was a knight who had been by her side for 13 years. The person who came to her mind before her own family was going to be annihilated . He risked his life for her, suffered wounds, hunger, and gave her everything. Now, he is looking at her while she’s waiting for her execution with a joyful smile. “Please show me another enjoyable story this time, my lady.” The devil smiled and extended his hand, and the girl took it. “I hope you get the ending you desire in the next story, my lady.” (Source: Kakao, translated)

The latest series by Hiro Mashima is a Demon World Academy Dark Fantasy!! DEAD ROCK is a demon king training institution that towers over the depths of the demon world. Yakuto, a young demon, challenges the harsh entrance exam to knock on the doors of DEAD ROCK!!

The existence of a magical enthusiast reached its tragic conclusion when he was killed by powerful spell casting nobility. However, his final desire to acquire more wizarding knowledge and expertise was granted when he was reborn as Lloyd de Saloom, the seventh heir to the throne of Saloom Kingdom. This reincarnation allows him to hone his magic capabilities without any restrictions.

Kim Kigyu thought all of his problems were solved when he was offered an invitation to become a unique-ability player. He's been trying his best to level up, but his efforts have been in vain. Kigyu spent five long years working as a guide on the lower floors of the tower until he discovered his capacity to link with "Egos," which improved his stats. With his new abilities, Kigyu is determined to challenge old attitudes and show that one's rank does not dictate their value. He sees this as an opportunity to explore uncharted areas.

Lucas Trowman, once regarded as the most prominent archmage of all time, suffered an abrupt downfall when Demigod cursed him with a lifetime of insanity. However, after four thousand years, he reincarnates into the ordinary, fragile body of a student named Frei Blake, who is studying at the prestigious Westroad Academy for mages. Lucas is surprised to find that magic has not progressed much in his absence, leading him to suspect that Demigod is behind the stagnant state. With a burning desire for revenge and a goal of reclaiming his former dominance, Lucas begins a journey to reach the highest level of magical prowess.

Magic in this world is determined at birth by "Marks"—four symbols that indicate a human's magical abilities and potential. Despite being an accomplished sage, the protagonist despairs when he learns that his mark is unsuited for battle and only useful for augmenting other forms of magic. He decides to reincarnate in the far future, hoping to achieve the mark of close combat that he longs for. As reincarnated six-year-old Mathias Hildesheimr, third son of a duke's family, he finally attains the desired mark. However, he soon discovers that the world has regressed in terms of magical knowledge and swordsmanship. Basic spells have been forgotten, and only poorly crafted magic equipment is available. To compound matters, his once-praised mark is now seen as the worst of them all. Despite these challenges, Mathias displays unrivaled swordsmanship and earns a place in the prestigious Second Royal Academy at the age of 12. He defies expectations and makes waves at the academy and beyond. Meanwhile, Mathias begins to uncover sinister forces at work in the shadows. With humanity weaker than ever, he must take on the responsibility of stopping their dark plans.

Roland, the renowned assassin who vanquished the demon lord, could have easily attained an immortal status, but it's the last thing on his mind. Instead, he's set on evading recognition and wealth to lead a conventional life. To achieve that, he applies for a post at the Adventurers Guild, a popular hub for audacious warriors to report their conquests. However, Roland is unlike any other worker and doesn't comprehend the reality of a "normal" existence. Can this exceptional assassin adapt to the humdrum life at the guild?

Alicia, the Marquis’ daughter who missed her chance to marry. Now, she has only one option left—to become the seventh wife of the "monster" Grand Duke! But the moment she opened her wedding gift, she fell straight into hell. In order to survive, she shattered the demonic castle of hell—and returned to the time before all the tragedies began. To twist fate, Alicia goes straight to the Grand Duke. …Wait a minute, no one said he’d be this handsome?! "Marry me, Your Grace!"