Mujintou de Elf to Kyoudou Seikatsu

At the age of 30, Kento became a billionaire overnight after winning one billion yen in a lottery. He decided to purchase a small, vacant island located off the Southern coast of Japan to relax and enjoy life at a leisurely pace. However, his peaceful existence was interrupted one day when he discovered an unconscious woman on the beach who clearly did not belong there. As he tended to her, Kento couldn't help but notice her dangerous edge, something that he found a bit thrilling as an ordinary man. This woman, Elize, had brought some intriguingly exciting behaviors with her from another world.