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38Chapters
29Followers
1Comments
Updated 6 years ago
Summary
In the future, alien invasion is a daily occurrence and everyone must be prepared. Elementary School #9 has assigned three students to fight off the extra-terrestrial threat. See [AnimeNewsNetwork](https://www.animenewsnetwork.com/encyclopedia/anime.php?id=784) for the anime.
- Author
- Tomizawa Hitoshi
- Demographic
- Seinen
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