Manga After Being Reborn, I Became The Strongest To Save Everyone

Eric's life was extremely difficult. Already at the age of 16, he lost his friends and family due to the monsters that attacked his village. In a fit of anger, he became a soldier to never again allow a loved one to die, but he was unable to protect his girlfriend. As a result, he died himself, surrounded by the corpses of people whom he wanted to save, but could not. But suddenly he opens his eyes and realizes that he has been reborn. But what is more surprising - he is raised by his past parents! This means that he has a chance to save them all. The universe gave him a wonderful chance, leaving all his knowledge, but at the same time sending him at the moment of birth. Now he has enough time to prepare for all future adversity and overcome them.