PikoUtataneV3
Sans might be free from Error, but that certainly doesn't mean he's happy.
Post-Errortale, Swap!Sans escapes from Error and his timeline goes back to normal, but now Sans has to live with the lifelong trauma Error gave him and readjust himself back into society. It's going to be very hard, especially since he appears to be the only one who remembers the incident.
Errortale is by loverofpiggies.
Just a one-shot, sorry! I might continue it. Maybe not.