It's about bonnie and toy chica ._.

Toy Bonnie had made Toy Chica upset and angry, she goes off somewhere and had met someone who'll she never forget. (Toy Bonnica) (Hurt/Comfort and Romance)

Bonnie and his friends were stuck in the parts and service room, Bonnie was getting lonely, foxy always with chica, Goldie and Freddy playing video games, the only ones left are..the toys.