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

(Esta sinopse está em inglês. Ajude a comunidade traduzindo!)

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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)