Stop-motion doesn't need a story to work, it needs someone bored enough to spend weeks moving clay figures frame by frame just to see what happens. The red clayman's harassment of the yellow one is pure slapstick physics, the kind of humor that lives in the motion itself, not in setup-punchline timing. A high school student figured out what most professionals forget: constraint breeds charm, and a single minute of genuine stop-motion craft beats ten minutes of anything phoned in.
Akairo-kun, a red clayman, is bored and has nothing better to do than bother Kiiro-kun, a yellow clayman. Kiiro-kun is enjoying a quiet moment with a pig when Akairo-kun plays a trick on him, and the two little claymen end up in a scuffle. The piece is a single-episode fantasy ONA released in 2004.