Office lady falls from a building is reincarnated into another world and ends up at the Devil Kings castle. Can she save him from the bad ending?

Tooru Kariya, a corporate slave of an OL, finds out that her only solace, her favorite character, the "Demon Lord" in the manga "Lapis Lazuli World", has been killed. In despair, Tooru falls off a building. But she wakes up to find herself in front of the Demon Lord's castle! Toru has transmigrated into Lapis Lazuli World and unexpectedly befriends the Demon Lord, so she offers to serve him. There is only one thing to do! I will make sure the Demon Lord has a happy ending! (Source: B's-Log Bunko, translated) *Note: includes two prologues, two epilogues and two extra chapters.*

*"Why did I get the villain role?! I really don't want to die!"* I reincarnated as Viala, the villainous noble from my favorite novel. Immediately, I thought to persuade the heroine to avoid the ending where I get executed, however, the heroine had not even enrolled in the academy. If things continue on this path, I'll be heading straight into marriage with my fiance, the woman-loving prince who does whatever he likes without consideration for others... HELL NO!!! If push comes to shove, I'll break the engagement myself! It was then that my servant, Sid, who had always been by my side and protected me at every turn, told me that he'd do something about it. Is it out of loyalty or love? Together with Sid, I'll show everyone that I can be happy. A forbidden love between master and servant? Or simply just slapstick? The love comedy about elopement begins! *Includes five epilogue chapters, and an extra chapter.*

One day, Sophia suddenly gains the ability to craft sweets that enchant fairies. As the sugar-hungry fairies clamor around her, she receives an invitation from a noble family—but her host turns out to be a ten-year-old boy!? And then, like a scene straight out of a fever dream, the angelic-looking young Count Lucas suddenly corners her with a smirk and declares, “You’re gonna marry me, right, lady? (dark chuckle)” To avoid this absurd age-gap marriage proposal, Sophia is determined to conquer the young count’s appetite—and uncover the secrets behind his angelic mask!