"Jinryoku Senkan!? Shiokaze Sawakaze" is a lighthearted anime series that blends elements of comedy, slice-of-life, and military themes. The story centers around the crew of the Shiokaze and Sawakaze, two fictional ships operated by the Japan Coast Guard. The narrative primarily unfolds through the daily lives and misadventures of the crew members, who are anthropomorphized as young women, a concept inspired by the popular "ship girl" trope seen in other media.

The Shiokaze and Sawakaze are depicted as sisters, with Shiokaze being the older, more responsible sibling, while Sawakaze is energetic and occasionally reckless. Their interactions form the core of the series, showcasing their contrasting personalities and the camaraderie among the crew. The plot often revolves around their duties as coast guard vessels, including search-and-rescue operations, maritime patrols, and training exercises. These missions are portrayed with a mix of humor and light drama, emphasizing teamwork and problem-solving.

Supporting characters include other anthropomorphized ships and crew members, each with distinct traits that contribute to the series' comedic and episodic structure. The show frequently incorporates educational elements about maritime safety and the role of the coast guard, presented in an accessible and entertaining manner. While the series maintains a lighthearted tone, it occasionally touches on themes of responsibility, duty, and the importance of protecting lives at sea. The episodic nature of the story allows for a variety of scenarios, ranging from humorous misunderstandings to more serious situations that test the crew's skills and resolve.

Overall, "Jinryoku Senkan!? Shiokaze Sawakaze" offers a unique blend of comedy and educational content, framed within the imaginative concept of anthropomorphized ships navigating both their duties and personal relationships.