Surviving The Apocalypse With An Incomplete System

Alexander Evergreen, a teenager who, due to an accident, awakened his abilities but also lost his emotions due to the flaw his ability gave, has now found himself thrust out of his comfort zone and into the distance past, regaining his emotions and gaining a fragmented system but putting all of his classmates into trouble and one of his classmates into a coma.
Now, the budding adult must find a way to live with himself, gong through the process of self discovery while trying to make up for his past errors.
"It's going to be fine. How hard could it be?". He would soon find that out as it would seem that this world of theirs wasn't as simple as his people had been made to believe.