Conscription

John was a pretty easy going kind of a guy. Work from home desk job. Single dad to a precocious but overall tolerable daughter. Doing ok for himself in most ways by the standards of the old world. Then the System arrived.

The everyday world he's known for decades has changed so he must change as well. He will need friends and allies to help keep himself and his daughter safe. He has to find ways to synergise his teleportation power with the abilities of the rest of his team as they fight off waves of monsters. All of this just to survive the introduction of the System to an Earth that isn't ready for it. What comes after that is anyone's guess.

No more same-as-yesterday. No more doom-prepping. No more living as a shut-in. It's time to go out and embrace his new power and the apocalypse that has been forced upon him.