

Season - Episode
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1 - 1In a Pinch on Our Maiden Voyage! Apr 10, 2016
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1 - 2In a Pinch During Pursuit! Apr 16, 2016
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1 - 3In a Pinch in Pajamas! Apr 23, 2016
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1 - 4Maidens in a Pinch! Apr 30, 2016
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1 - 5Pinched by the Musashi! May 07, 2016
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1 - 6In a Mined Pinch! May 14, 2016
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1 - 7In a Stormy Pinch! May 21, 2016
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1 - 8In a Pinch with the Hiei! May 28, 2016
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1 - 9Mina in a Pinch! Jun 04, 2016
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1 - 10Happy at the Equator Festival! Jun 11, 2016
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1 - 11In a Pinch with a Battleship's Big Cannon! Jun 18, 2016
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1 - 12In a Pinch with the Last Battle! Jun 25, 2016
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0 - 1Kouko Nosa in a Pinch! Mar 31, 2017
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0 - 2Kouko Nosa Still in a Pinch!? May 24, 2017
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0 - 3High School Fleet Movie Jan 18, 2020
Overview
Living by the sea, protecting the sea, and journeying across the sea... They're the Blue Mermaids! Because of a shift in tectonic plates around 100 years ago, Japan lost much of its area to submergence. To preserve Japan's territories, coastal cities sprung up, one after the other. Eventually, they became marine cities, and along with the expansion of sea-lanes to connect them, the need arose for a sizable staff to protect the seas. At the same time, maritime jobs were becoming more popular among women. Hence, the Blue Mermaids, tasked with keeping the seas safe, had become every female student's dream job. This is when childhood friends Akeno Misaki and Moeka China enroll in a marine high school in Yokosuka, along with other girls who share their goal of becoming a Blue Mermaid.