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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Keiko Toda
Grandma (voice)
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4 episodes • 2020
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Mottainai Grandma Goes to the River | Jun 5, 2020 | 0.0 |
| 2 | Mottainai Grandma | Jun 12, 2020 | 0.0 |
| 3 | Mottainai Grandma "Let's Eat with Gratitude" | Jun 19, 2020 | 0.0 |
| 4 | Mottainai Grandma Goes to Magic Land | Jun 26, 2020 | 0.0 |
