Konatsu is about to start a new school in a new town, and she’s basically all on her own. Her dad just got a job overseas, and her aunt can only check in from time to time. It’s a lot for a shy, reserved girl to handle. But on one of the first days of class, she discovers that the school has an aquarium! The club that runs the aquarium is headed by an older student named Koyuki, and Konatsu is instantly drawn to her. Konatsu’s introverted tendencies are hard to overcome, but maybe she’s found something worth coming out of her shell for?
Koyuki really likes Konatsu, but she’s terrified of making the wrong move and embarrassing herself—or worse, chasing Konatsu away forever! Luckily her father has her back and encourages both girls to take things at their own pace. But not all fathers are created equal, and an unexpected visit from Konatsu’s dad threatens to ruin the girls’ special time together!