Arata is reincarnated in another world with the privilege of a healthy body and a place where he doesn't have to deal with people. On the island where he is reincarnated, there are only monsters, divine beasts, true ancestor vampires, ancient dragons, and so on. No, there are certainly no "people," but ... The first time you reincarnate, you're in desperate straits! I thought I was in a desperate situation, but it seems that my "healthy body" is "invincible" and I don't have to worry about it. While lightly accepting his mythical power, he is living a comfortable and leisurely life, cooking and walking together, living in a tent with a beautiful girl, and holding a party with everyone on the island... "Brother, let's eat dinner together! Master, play with me!" A heartwarming island life with the "strongest" will begin.