I thought i was dead system voice ringing in my head I came back to the past.at first didn't believe it but after slapping myself I realised I came back to the past right before the world has fallen to ruin .

My name is Ryo I have regressed back in time.I was killed by who I thought was my friend and hero in ruin world. and I don't know how I came back in time but I will kill him and also those constellations who laughing at our misery just you wait. I will have my revenge in this life .