Spring Weapon Number One
Spring Weapon No.1
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Spring Weapon Number One

Alternative Titles

Synonyms: Seishun Heiki Number One, Shimatsuya K, Saishuu Heiki Kon-chan
Japanese: 青春兵器〈スプリングウエポン〉ナンバーワン
English: Spring Weapon No.1
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Type: Manga
Volumes: 7
Chapters: 69
Status: Finished
Published: Oct 17, 2016 to Mar 5, 2018
Genres: Action Action, Comedy Comedy, Sci-Fi Sci-Fi
Themes: Gag Humor Gag Humor, School School
Demographic: Shounen Shounen
Serialization: Shounen Jump (Weekly)
Authors: Hasegawa, Tomohiro (Story & Art)


Score: 6.591 (scored by 127127 users)
1 indicates a weighted score.
Ranked: #131702
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #22105
Members: 381
Favorites: 2

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Volumes: /7
Chapters: /69
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An evil organization of androids called Numbers is threatening to take over the world! Luckily, a top secret defense force of specially trained operatives called MAPPO (Monster Attack Professional & Pacific Organization) is there to stop them. So what happens when a MAPPO agent in high school gets a new classmate that's a wacky-looking Number?

(Source: VIZ Media)

Included one-shots:
Volume 4: Saishuu Heiki Kon-chan
Volume 5: Shimatsuya K


As a part of the JUMP START initiative, the first three chapters of Spring Weapon Number One published in English in VIZ Media's digital Weekly Shonen Jump on the same day as the Japanese release.


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Poll: Shimatsuya K Chapter Discussion
Stark700 - Aug 23, 2016
2 replies by ReaperCreeper »»
Sep 16, 2017 6:16 AM
Poll: Spring Weapon Number One Chapter 11 Discussion
Kuma - Apr 5, 2017
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Apr 5, 2017 11:23 PM
Poll: Spring Weapon Number One Chapter 10 Discussion
Kuma - Apr 4, 2017
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Apr 4, 2017 7:14 PM
Poll: Spring Weapon Number One Chapter 9 Discussion
Kuma - Mar 23, 2017
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Mar 23, 2017 7:08 AM
Poll: Spring Weapon Number One Chapter 8 Discussion
Kuma - Mar 22, 2017
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Mar 22, 2017 6:22 PM