In a dangerous world teeming with monsters at every turn, the kingdoms placed their hopes in the System Users, powerful adventurers who grew stronger faster than anyone else. Among them was Novis, one of the most righteous of all. But when a quest goes horribly wrong, Novis’s system becomes infected... and his first new quest is a thirst for blood. The world isn't as simple as Novis once believed. The line between monsters and humans begins to blur, because Novis is no longer just a man. He’s a vampire... a vampire wielding the kingdom’s most powerful system.
Everyone assumes Bonnie is a ditsy redhead barely surviving corporate life until a late-night office attack reveals her true nature: sharp, capable, and deadly. Her unexpected display of skill draws the attention of the Fianna, a secret organization that wastes no time recruiting her as an apprentice assassin. To her surprise, Bonnie thrives in this dangerous new world. But one obstacle remains: Ronan Clarke, the Fianna’s top operative, who sees her as a joke and is now forced to rely on her as his partner. Will Bonnie ever be able to prove herself to Ronan?
Minu Seo, a struggling nobody, never thought he'd inherit anything, especially not from the mother who abandoned him. However, what he received was beyond anything he could have imagined... A kindergarten for divine beasts! Will Minu be able to look after these magical children as their new teacher?
The Grim Reaper centers his whole existence on collecting mortal souls, waiting to be reborn into his next reincarnation. It is the haunting of a lone spirit that insists the Reaper remember his past life instead... But the Reaper would rather not remember. He wants to move on. Though maybe the only way forward is to embrace the secrets that the past may hold.
In the original story, Roselia was a maid in the duke’s household, used as a mere pawn in his schemes before being executed by the crown prince after being framed as a traitor. But this Roselia is different. The heroine, now in the body of the doomed maid from the novel and fully aware of how the story ends, is determined to change Roselia’s fate—disguising herself as a man to avoid the duke’s attention. But wait… why is she still being taken?! Somehow, Roselia still ends up in the duke’s estate—not as a maid, but as a manservant!