Shinmai Maou no Keiyakusha

Explore the captivating world of Shinmai Maou no Keiyakusha, a captivating manga that masterfully blends Action, Comedy, Ecchi, Fantasy, Harem, Romance, Shounen, Supernatural. Created by the talented Uesu Tetsuto. Experience this thrilling series for free at MangaSSS, where you’ll find a rich collection of manga to explore. With 46 chapters translated into English and more on the horizon, there's never been a better time to start your adventure. Be the first to know—create an account today, bookmark Shinmai Maou no Keiyakusha and never miss an update!

"Hey, you said you wanted a sister, right?" First year highschool student, Toujo Basara, was suddenly asked by his father and fell into a state of panic. On top of that, the eccentric father told him he will be getting remarried. He then departed overseas after bringing Basara two beautiful step-sisters. But Mio and Maria's true forms are actually the newbie Demon Lord and a succubus!? Basara was almost entered into a master and servant contract with Mio, but a "reversed" contract was formed by mistake, and Basara is now the master!? Moreover, Basara is being hit by ecchi situation one after another due to the contract, but Mio's life is being pursued by other demon tribes and hero tribes!! The most powerful contractor's desire action drama begins!