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Meruru first showed up in episode 228 as a postal worker for Keron—basically the frog planet's version of a mail carrier. She came to Earth specifically to deliver a message to Keroro, who spent most of the episode trying to dodge her, convinced the letter was some kind of official reprimand from headquarters.What's memorable about Meruru is her unwavering commitment to the job. The Keroro Platoon threw everything at her—cloaking tech, weapons loaded with sticky gunk capsules, evasive driving tactics, even Tamama's notorious farting—and she just kept coming. She navigated around all of it with ease, seemingly unbothered by the chaos and possibly even enjoying some of it (especially the farting, which is a weirdly specific detail). Her symbol is an envelope, fitting for a postal worker.
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