Robotic Heart

If you were lonely, wouldn't you want your own companion? If you created your own version of life, would you make even more after seeing that they were successful?
A scientist who kept to himself managed to create a life form from what he could collect from the Earth he lived on. The upbringing of this one being caused commotion in the entire city which eventually spread throughout the entire world. Artificial life that was once hated was soon loved when a plague broke out and killed off many.
When one of the original three artificial lifeforms decide to take out their frustration against people bringing back the deceased, explosions took over multiple cities, leaving the once semi-prosperous world in ruins.
A young man named Niel finds himself waking up in the middle of all of this, and is only greeted by a note and a strange bubbly woman who had no problems of going on an adventure with him. Travel with Niel and his new companion as they find their way to fixing their broken world.