Sgt. Frog
Japanese manga series
Sgt. Frog, known in Japan as Keroro Gunso (Japanese: ケロロ軍曹, Hepburn: Keroro Gunsō; lit. 'Sergeant Keroro'), is a Japanese manga series written and illustrated by Mine Yoshizaki. It was launched in Monthly Shōnen Ace in April 1999. The story follows the attempts of a platoon of frog-like alien invaders to conquer Earth. Sergeant Keroro, the titular character, is the leader of the platoon, but is at the mercy of a human family of three after being captured by them. Keroro is forced to do meaningless chores and errands for the family after his army abandons his platoon on Earth. The series was later adapted into an anime television series by Sunrise, which ran for 358 episodes from April 2004 to April 2011. A second 23-episode series was broadcast from March to September 2014. A new anime project was announced in April 2024 to celebrate the 20th anniversary of the original anime, and was released as a film in June 2026. A new anime television series is set to premiere in October 2026.
The public source identifies “Sgt. Frog” as japanese manga series. This brief keeps that definition visible, then builds a research path around Frog, Japanese and manga.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 20, 2026. The linked authority identifier is Q582630. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1999, 2004, 2011 and 2014.
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This entry incorporates text from “Sgt. Frog” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.