Shinmai Maou no Testament

Genres: ActionEcchiFantasyRomanceHarem
Rating: 462  +   -
Names: The Testament of Sister New Devil, Shinmai Maou no Keiyakusha
Status: Complete
Synopsis: "Hey, you said you wanted a little 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!?