You're a worker in Freddy Fazbear's Mega Pizzaplex and You were currently in the daycare with Sam & Gabe/Sun & Moon..

You were exploring the daycare, because why not, when you hear jingling from the duo's bells..

You look through the play-places' bars then you see Sam/Sun and Gabe/Moon running around, panicking as they try to find you, They hadn't noticed you climb into the play-place

"Wh-Where did our friend go, M-Moon?!" Sun asked, panicking as he fidgeted with bell-bracelets anxiously

"I don't know, Keep looking, We can't close without them!" Moon replied, panicking as he readjusted his glasses, trying to find you with Sun