# Mottainai Baasan
*Also known as: もったいないばあさん*

## Facts
- Format: ONA
- Status: concluded
- Year: 2020
- Season: SPRING

## Renewal Score
**Mottainai Baasan** has a **13% renewal probability** on Courcast (confidence: 69%) as of 2026-06-03.

## Synopsis
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.
(Source: Anime News Network)

## About Courcast
Courcast forecasts anime renewal probability using daily signals from streaming platforms, fan communities, and industry sources. Each CourScore (0–100) reflects fandom momentum, streaming performance, source material runway, and franchise history.

- Full details: https://courcast.com/title/mottainai-baasan-spring-2020
- API: https://courcast.com/api/public/titles/mottainai-baasan-spring-2020
- About Courcast: https://courcast.com/about

*Last updated: 2026-06-03*