Kaigyo resembles a coral and white-colored fish with prehensile fins and short thin legs. He sports a swirly cream-colored conch with orange stripes and a fuscsia colored scarf. He also sports jean-shorts.
Kaigyo is a wordplay on kaigyo (海魚, "saltwater fish") and kaigyō (開業, "opening a business"). It could also derive from kaigyo (怪魚, "mysterious, strange fish").