"Mizugi Kanojo: The Animation" is a short-form anime series that centers around the relationship dynamics between a young man and his girlfriend, who works as a swimsuit model. The protagonist, a college student, becomes romantically involved with a woman named Aoi, who is often seen modeling swimsuits for various projects. Their relationship is portrayed through a series of intimate and lighthearted moments, often revolving around Aoi's modeling career and the protagonist's reactions to her work. The narrative explores themes of trust, communication, and the challenges of maintaining a relationship when one partner is in the public eye. The series is episodic in nature, with each installment focusing on a different aspect of their relationship, such as jealousy, support, and mutual understanding. The characters are depicted in a straightforward manner, with Aoi being confident and dedicated to her career, while the protagonist is shown as caring but occasionally insecure about her profession. The story balances romantic and comedic elements, offering a glimpse into the everyday lives of the couple as they navigate their unique circumstances.