Isekai Yururi Kikou: Kosodateshinagara Boukensha Shimasu

It is the story of a young boy, Kayano Takumi who got killed by someone accidently. He can’t even able to reborn and then God suddenly came in front of him. According to him, he can’t go back to life again and now he must be able to live in a different world. He got stuck in another problem and reached the forest of another world. Where he found twin children and decided to take care of them.