Unko-san: Tsuiteru Hito ni Shika Mienai Yousei Junjou Ha

Before you start

Kitsu lists earlier anime in this story. Start with these for context:

• Unko-san: Tsuiteru Hito ni Shika Mienai Yousei

Story

On a legendary island shaped like an unusually regular turd, a population of turd-people and insanely aggressive animals go about their hilarity-packed day to day lives. Central character Yoshiko Un is known as Unko-san, but you're unlikely to meet her--the island appears only to the fortunate few, to whom they give good luck. (Source: The Anime Encyclopedia)