This original story about the Californian mythological being—“Bigfoot”—highlights the importance of raising awareness about protecting our natural environment, all species of animals, and above all, developing a humanitarian spirit capable of embracing diversity so that we all evolve in a world of peace. Even though Bigfoot is considered to be the legendary creature of the Pacific Northwest mountains, many have reported his existence living in harmony with the nature that surrounds the lives of these beings. In this humanitarian vision of Bigfoot, two main characters, a father interested in conservationism and environment protection, with his little daughter, found Little Bigfoot in the forest of a Secret Lake and decided to adopt this Little Bigfoot to teach her how to evolve in a human society, overcoming the difficulty of a smooth adaptation.