Medaka enrolls in a school where the dog gets straight A's, the cat won't stop competing with him, and the teacher has a fish for a head, and the show treats this like it's the most normal thing in the world. The comedy lives in that deadpan acceptance, where absurdity gets delivered with zero explanation or apology. You're watching a five-minute comedy that knows exactly how silly it is and refuses to wink at the camera about it.
Medaka is a high school student who hopes to become a doctor, and at her parents' suggestion she transfers to Tanaka Private School. She soon realizes the place is far from ordinary. Her classmate Pochi earns perfect scores on every test, yet he is a dog. Nekoko, a cat, sees Pochi as her rival, and another classmate, Misa, is only five years old. Even her homeroom teacher, Mr. Tanaka, is unusual, since his face appears to be that of a fish. The result is a short comedy OVA with a fantasy twist on the school setting.