Hashira Ueki died after accidentally falling down the stairs. But he was blessed by a plant god and reincarnated to another world, for helping to fix up the plant god's ramshackle shrine when he was a child. His only wish is to "live a relaxed, self-sufficient life, surrounded by nature and trees." True to his wish, he is reincarnated into the middle of a vast wilderness surrounded by deep forest! Thanks to his special abiltiest, he is able to fight off demons, build a log house, grow vegetables, hunt, and live a carefree life, but one day, he rescued a high elf who had fallen ill. She tells him that this forest is actually known as the "sea of death" where people feared to go, because it is inhabited by so many vicious demons.......?

(Source: Takarajimasha, translated)