Kuuya is the keeper of "Gamagama Aquarium." He looks brusque and unmotivated, but he does his job well. He's actually not good with women around the same age, and he avoids looking at them even when he's talking. Kuuya has a tight shift due to a shortage of aquarium keepers, so he is always tired.

He loves Kukuru's grandmother's special plum wine.

(Source: Official Site, translated)