Isekai Yururi Kikou: Kosodateshinagara Boukensha Shimasu is a Manga/Manhwa/Manhua in english language, Shounen series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

"I'm terribly sorry!"
A god was suddenly prostrating in front of Kayano Takumi. He was apparently killed by a mistake. Moreover, he can't be reborn again. However, according to god, he would be able to live in a different world, but he made a mistake again and transferred him into a dangerous forest... where he finds a pair of children and decides to take care of them.