Webtoon title

I am trying to find this one webtoon I read years ago to check if it’s completed. It’s about a dad that has the power to control blood goes into past to be better father in a post-apocalyptic world. He has two sons. One (blondie) is his true son, but the other was a son that his brother had with his wife (as an affair, leading him to become a bad father from the betrayal). In this world, there are zombies, some are sentient.