Back In Time When The Apocalypse Hadn't Started

After 5 years since The Great Awakening that started the evolutionary process of all living beings on the planet. All humanity at the beginning thought that this new era would be 1000x bigger and better than the industrial revolution that had happened a few decades ago, but to everyone's unhappiness and for lack of attention between the lines of the evolutionary process, this new "phase of humanity" has become a complete horror for all of humanity, pushing us to the bottom of the food chain. Some living beings that couldn't resist the abundant amount of mana that began to stimulate their power core ended up mutating or turning into zombies in the process. When a resistance group in an underdeveloped country had no more will to live and was giving up, they then devise a plan to ensure their future survival and use a powerful skill to go back in time before to the best-known event of humanity "The Great Awakening". English is not my first language, I'm using google Translate and correcting it with Grammarly and using a little bit of my knowledge which is little. If anyone can edit and translate for me, send me a message right now.