Isekai Yururi Kikou: Kosodateshinagara Boukensha Shimasu

It is a story of a guy who was suddenly killed by someone and it was just a mistake, Kayano Takumi. Then a goddess appeared in front of him and according to that, he couldn’t go back into that world because he died. But he can go to a different world but mistakenly he reaches a dangerous forest where he finds twin Children and starts to take care of them.