JJ was created as separately from any group of animatronics as a company for Balloon Boy in an unknown year between 1993 and 2016. Her whereabouts are currently unknown however she is listed to be alive.
Creation (Somewhere between 1993-2016)[]
JJ was built by Freddy after BB was being annoying and seeking attention. She was very close to him.
2016[]
JJ was moved to Fazbear's Frights with the others after Springtrap's attack and did not turn into a phantom. She repaired Toy Chica when she was dying and needed a new suit, and helped the animatronics save their phantom friends and defeat Springtrap. JJ moved to the 1st Pizzeria together with everyone once Springtrap joined their side.
2020[]
JJ was present during Nightmare's arrival in Freddy Fazbear's Pizza I and was part of the group that could not escape and got captured by Nightmare. JJ was trapped in a room that was blocked by a force field together with BB, Chica, Freddy and Toy Bonnie. After a failed escape attempt that killed Toy Bonnie, JJ and the others were taken by the Nightmares to the main room where they immobilized their bodies and posed them next to dead cops to frame them for their murder.
2120[]
JJ is currently missing in 2120, and listed to be alive in the device's list.