4 episodes
First episode: E1

In the books, the titular Grandma seeks to explore the true meaning of the Japanese phrase "mottainai" after her son asked her what it meant and she couldn't answer. "Mottainai" is a commonly used exclamation that roughly translates to "what a waste!", expressing regret over wastefulness. The Grandma seeks to explore the meaning and importance of "mottainai" in the story.
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4 episodes
First episode: E1Quick answers about this series, release status, and episode totals.
Mottainai Grandma first aired on June 5, 2020.
Mottainai Grandma currently has 1 season and 4 episodes.
Mottainai Grandma is ended, and no upcoming episode is currently scheduled.