Puella MagiStuck

Dave Strider has dealt with having to see things happen over and over again. He's done playing the lead hero that he was never meant to be and closes the stage curtain deciding that the next time reset will be his last. That was his plan, until something in the timeline changes.
Now, Dave must find out what was the cause of the change if he wants to be able to save his friends, and possibly his sanity.