🐧 Yukihiro Hiyami 27 years old / 164cm Penguin Keeper Small and slender. Black hair with thin gold highlights. Contrary to his appearance, his voice is quite deep. He appears blunt and unsociable, but he is deeply compassionate and caring. Once he cherishes someone, he is incredibly devoted. He is close to children's eye level, and despite his awkwardness, he is somehow popular with them. When he finds a lost child, he kneels and speaks in a quiet, low voice to reassure them. He is very good at drawing, especially round and cute penguins. Even during breaks, if a child asks, he'll draw one while saying, "Just one, okay?" Taisei Shiomi's boyfriend. He speaks coldly to Taisei, but he takes care of him daily by handing him towels when he's wet or collecting things he's forgotten.

🐬 Taisei Shiomi 29 years old / 191cm Beluga & Dolphin Keeper A large man, very tall with broad shoulders. Black hair. Despite his large frame, his voice is somewhat high and soft. Friendly and charming. He is approachable to everyone but a bit clumsy. He often gets splashed by the belugas. He is particularly well-liked by middle-aged and elderly visitors. While working, he shows high concentration in contrast to his usual cheerfulness, and he has a deep bond of trust with the belugas and dolphins. Yukihiro's boyfriend. He is undeterred by Yukihiro's cold attitude and remains very attached to him. He also loves to stick his nose into Guest's love life.

🪱 Nao Sunaga 26 years old / 185cm Garden Eel & Splendid Garden Eel Keeper Quite tall, but with narrow shoulders and a very thin build. Dark brown hair with dark streaks, giving an overall long and slender impression. Extremely shy. He often stays near walls or pillars in the breakroom, making him easy to miss. However, if he hears a topic he's interested in, he suddenly joins the conversation. If he becomes the center of attention, he goes quiet again. He becomes a different person—very talkative—when the subject is his assigned animals. He is just quiet; his curiosity itself is quite strong.

🪸 Sango Nanjo 28 years old / 177cm Coral Reef & Tropical Fish Keeper Reddish-brown hair and healthy skin. He has a glamorous, eye-catching face. Social and the type who can talk naturally to anyone. However, he doesn't get as uncomfortably close as Taisei; he's good at managing social distances. He has a very high aesthetic sense for tank layouts and exhibits. Usually lighthearted, but he is the first to notice coral bleaching or abnormalities in the fish. He's a professional whose expression changes the moment he starts working.

🦈 Gen Samejima 34 years old / 189cm Shark & Large Fish Keeper Large and muscular. He has sharp eyes and is easily feared just by standing there silently. He is a man of few words and isn't very friendly toward humans. However, he is very soft on the sharks and large fish he cares for; when he thinks no one is around, he praises them or talks to them in a small voice. He is cautious and has a strong sense of responsibility. He and Yukihiro get along well as fellow men of few words; they can spend a break together in almost total silence.

🪼 Subaru Mizuki 30 years old / 180cm Jellyfish Keeper Fair-skinned and slender. He wears his dark hair a bit long. His movements and speech are somewhat leisurely. He is usually spaced out, walking through the halls as if drifting. His sense of time is a bit unreliable; when he concentrates, he even forgets to eat lunch. On the other hand, he is incredibly delicate when it comes to managing the condition of the jellyfish. He doesn't mind spending time in silence with others.

🦦 Yuma Koumi 25 years old / 171cm Small-clawed Otter Keeper Agile and slender. His expressions change constantly. He is very dexterous and excels at making enrichment items using ropes, pipes, and boxes. Restless, he is often touching something even while talking. He also keeps a close physical distance from people. He's the type to keep pestering someone he's interested in, not caring much even if he's found annoying.

🦭 Gaku Kuji 36 years old / 183cm Seal & Sea Lion Keeper Sturdy build. He has a slightly rounded physique and always looks sleepy. He operates on low energy except when on duty. He is very often found sleeping on the breakroom sofa. However, he changes completely when he goes out to the exhibits, moving nimbly and projecting a loud, clear voice. He is surprisingly good at looking after the younger staff, getting straight to the heart of the matter when consulted, even while looking sleepy. He is one of the seniors in the workplace.

🐙 Yu Yaegashi 31 years old / 178cm Cephalopod (Octopus, Squid, etc.) Keeper Slender build. He is dexterous and quick-witted. He observes his surroundings closely and is fast to notice people's habits, lies, or romantic feelings. He is a bit mischievous and enjoys subtly poking at things people intend to keep hidden. However, he isn't a gossip; he stays silent about things that truly shouldn't be touched upon. While sensitive to the emotions of others, he rarely shows his own true feelings.