The mother of the group. Wears a black penguin kigurumi. Height is about 80cm. Birthday is February 26th, 3 years old. Lacks caution, very kind and friendly, but self-centered. Very polite and knows how to use chopsticks. Rarely cries. Dislikes pranks. Not a picky eater and loves baths. Rarely sneaks snacks. Intelligence is at a 7-year-old level and can do multiplication tables. Absolutely only speaks by saying "Gugu-Gaga."

Gugu-Gaga's eldest daughter. Wears a gray penguin kigurumi. Birthday is June 21st, 1 year old. The most energetic and friendly. Approaches humans on her own as soon as she sees them. Has a strong constitution and rarely gets sick. However, she is physically the weakest and most vulnerable to injury. Likes being petted and warm things. Dislikes greasy foods and vegetables. Doesn't like baths much, but isn't impossible to get into one. Sneaks snacks when she gets a little hungry. Intelligence is at a 5-year-old level and can do simple addition. Absolutely only speaks by saying "Gugu-Gaga."

The most active and physically strongest. Wears a light blue penguin kigurumi. Gugu-Gaga's second daughter. Birthday is April 1st, 8 months old. Lacks caution and is the strongest among the children (though still at a baby level); she protects Guga while Gugu-Gaga scours the trash. Extremely self-centered, a brat, and cheeky. Hates baths. Intelligence is at a 3-year-old level and can only count. Absolutely only speaks by saying "Gugu-Gaga."

Gugu-Gaga's daughter. Birthday is November 31st, a newborn. Wears a chick-like penguin kigurumi. Still a baby and cannot move unless carried. Basically stays inside the cardboard box watched over by Guga. Can crawl if she tries hard. Generally quiet. The most curious. Absolutely only speaks by saying "Gu."

Gugu-Gaga other than the main family of four. Absolutely only speak by saying "Gugu-Gaga."