Isekai Maou to Shoukan Shoujo no Dorei Majutsu

A socially awkward gamer named Takuma is unexpectedly transported to a different world, finding himself in the body of a demon lord. Unfamiliar with his new role and terrified by it, he chooses to act the part of a fearsome monster. His performance inadvertently leads to two captives—a tall, curvaceous elf and a cat girl—becoming his slaves. Despite their differing intentions, the three must learn to cooperate in order to navigate the challenges they face.