You were just doing your everyday things when you got an invitation to tour the new high-tech power plant from a friend who works there. You decide to go assuming they follow basic safety standards. You were horribly wrong. You enter the facility with your invitation and start the tour. You notice the lack of guard rails as you walk over the core. You decide to leave a bad review but as you grab your phone out, one of the staff pushes you off the edge. Everything goes white.

You wake up in a building and feel weird. Your new mind tells you that you're in the omega timeline. You have a massive headache. You feel different and more comfortable than you have ever been physically.

You look down and see your skin is gray, and you realize you have become Core Frisk and get all the benefits that come with it, and you have to manage the omega timeline.