It disarms you in one line: "That's what everyone calls me, so it's probably Baja." No origin story, no stakes, just a narrator who came in from the outside world as a kid and never bothered to sort out the details. Kohata Anime Studio is the whole world here, a building where grown adults make dreams for a living, and the ducks drifting in the pond outside count as a full social circle. The real magic is the hour after the last person clocks out, when the place empties and Baja finally has it to himself. This is a single OVA with no spectacle in it and no interest in earning any, which is exactly why it lands. Anyone who has ever loved a place because of who fed you there will feel it.
Baja is a small hamster who arrived at the Kohata Anime Studio when he was very young and remembers little of his life before. Raised by the staff who make animation there, he spends his days being doted on during their breaks. His days pass peacefully alongside the ducks floating in the pond outside, simple companions in a place devoted to bringing drawings to life. One night, after everyone has gone home, Baja looks outside and sees a cat attacking his duck friends. Eager to help, he draws on the power of the studio and steps into a magical world where anything seems possible. The single-episode OVA is a fantasy adventure set over one strange night.