Save all: my rebirth to find the truth

Are you sure you are ready to read this? Rei was always a lonely guy and ran away from problems. While his friends and classmates died in the midst of torment, he pretended that all this have never happened. He lived his whole life in fear and could not forgive himself. But the universe did not allow him to commit suicide. Life gave him an opportunity to correct the events that happened during his school years and never regret again. Together with the new life, Rei will begin to feel negative emotions and memories of other people. But will the weak guy be able to overpower himself and save everyone?