[DeepL Translation - needs review] Volume 1 Introduction: Earth is being targeted! But Sergeant Keroro, commander of the Space Invasion Force's Special Advance Work Unit, is discovered at the Hyuga household he has infiltrated and is easily captured--and then... The hugely entertaining, heppy earth invasion manga has finally begun!
(Translator: DeepL)
Gag manga with space soldiers, so...
Not only gender role stereotypy, but also DV, which can easily rub the wrong way.
Various references of the time, and interesting situ. But if taken seriously, it's quite dire and serious, but deus ex machina. (Well, impending space invasion isn't to be taken lightly no matter what.)
Some vocabularies. Has Furigana, but not only other Kana, but also Kanji words. Old ebook manga on Bookwalker, so blurry Kanji and worse with bold.
All in all, I find this amusing and a mildly worthy read.