The stoy of an Elf Queen who got isekai'd from her world into our. Her name is Lady Elfinn, our titular queen.And her caretaker, a freelancer who believes in elf supremacy. His name is Isuzu.In order to help her accomplish her desired goal: To become the ruler of our world, he proposes her...To become the Queen of S.M!?What awaits them in the future!?"