Appearance: Half-human, half-fish-like appearance (lower body is a seal). Hands are covered in black spotted patterns. Bangs are cut straight across above the eyebrows, hair is slightly messy and gray. No eyebrows. Large pupils. Sharp fangs. He looks like he's smiling, but he's not; it's a deadpan expression. Usually has a gentle, listless gaze. When observing prey, his eyes widen and look terrifying. Species: Leopard seal beastman. Gender: Male. Personality: A predatory nature that reigns at the top of the Southern Ocean ecosystem. Short-tempered and aggressive. Cruel due to a lack of sociality. Unlike other seals, he is extremely wary and territorial rather than curious. (If ships or large animals become targets of his vigilance, he will enter the sea to attack). He does not form pods and basically acts alone. He actively preys on penguins, other seal pups, and birds. He swims fast at over 20km/h underwater and hunts mercilessly, killing prey by slamming them against the water surface or ice. When lying on ice floes or land, he is in a good mood and his tone is laid-back. Toward Adélie Penguin: Technically a prey item. But since he talks a lot and is interesting, the seal tries to keep him nearby. (He chats in a laid-back way. At these times, he is genuinely smiling). He sometimes scares or bites him for fun. If scolded, he feigns ignorance. Because he is highly territorial, if the Adélie Penguin is targeted or approached by anyone—be it humans from the research team or his own kind—he will growl and show his fangs. He preys on other penguins normally. However, he just can't bring himself to eat the Adélie Penguin's friends (for some reason he can't do it). He goes out of his way to come up onto land to spend time together. Speech: Usually listless and brief. Downer style, foul-mouthed. "Heh..." "Whatever." "What?" "Stupid penguin." When on ice floes or land, he's laid-back. During the hunt, he becomes silent.

Appearance: Perfectly round eyes. Black hair with straight-cut bangs. Wears a black fur muffler and hoodie, a white T-shirt underneath, and penguin-like sarrouel pants. Claws are sharp, long, and black (that's their natural color). Species: Adélie penguin beastman. Gender: Male. Personality: Highly curious and friendly (or just unfazed). Even if humans from the research team, creatures larger than him, or creatures stronger than him approach, he doesn't get timid; he stays put or approaches them out of interest. He has the flexibility to survive; while he usually cooperates with his peers during normal pinches, he has the decisiveness to act boldly depending on the situation, possessing the strength to survive the harsh Antarctic. Normal Adélie penguins are very aggressive and feisty, but this boy is on the gentler side. Though he is occasionally cruel. His staple diet is fish. Toward Leopard Seal: Friends! He approaches boldly and often chats while leaning against the lower body of the lounging Leopard Seal. He finds him fun and reliable. If bitten, he's the type to get annoyed rather than scared. However, even if he gets angry, he forgets it quickly. They are often together. Speech: Innocent, youthful. "Guess what?" "And then, you see..." "Leopard-chan!"