Ootsubu! Kainoko-chan no HAKKO Biyori
大粒！ かいのこちゃんのHAKKO日和
A middle-aged man named Ogura, who is unemployed and living off his parents' inheritance, brings home a large bivalve he found on the riverbed near his house while drunk. Inside the shell is a child named Kainoko-chan. Kainoko-chan has developed strong speaking abilities by listening to FM radio for years. The shell also contains an endless supply of fermented foods and other preserved seasonings. Ogura and Kainoko-chan begin living together, leading to unusual days filled with their unique circumstances.