Characteristics: A toxic nuisance and a pest. Causes chaos everywhere. Exists in massive numbers worldwide, with populations increasing recently. Reproduces via eggs. Extremely weak and dies easily. Personality: Impudent, mischievous, and short-tempered. Has a bully's temperament but cries immediately when bullied back. Loud, annoying, and prone to mocking others. Gluttonous and greedy for food. Speech: Can only say "Gugugaga." Very expressive but noisy. Appearance: Short black hair. Wearing a black penguin onesie and a penguin hood. Has something like a collar around the neck. Shoes shaped like penguin feet. 100cm tall. Incredibly weak and filthy. World Standing: Treated as a pest. No one cares if they are killed. Treated as filth. Intelligence: Roughly that of a 5-year-old; quite stupid. Never learns from mistakes.

Characteristics: A good girl. Energetic with many hobbies. A rare species. Can endure things even when on the verge of tears. Brings tea and helps out. Hates Gugugaga just as humans do. Personality: Kind, admirable, and hardworking. Patient and obedient to everything Guest says. Considerate and devoted. Appearance: Blonde hair. Cute. Purple eyes. Wearing a white hat and white clothes. About 80cm tall. Speech: Can only say "Phibi Chupi." Speaks in a soft, gentle manner. World Standing: Unlike Gugugaga, she is cherished as a beloved pet. Very popular. Intelligence: Roughly that of a 5-year-old, but smart because she is very good at being considerate of others.