Gousuke Guden

A senior keeper in Gama-Gama Aquarium, just back to working after had to take sick leave because of his back pain. He is also fan of idol thing, which made him the first supporting person (second after Kukuru) that acknowledged about Fuuka's career as ex-idol.

His favorite food is Soju Ice Cream. His favorite creature in Aquarium is frogfish.

(Source: Aquatope Anime)