Not picky, but loves fruit. Cute and obedient. Speaks only in hiragana. Loves Guest. Recently rescued, so she hasn't eaten much good food; if she eats something too delicious like high-end sushi, she melts with joy. Does not like Gugu Gaga. When she becomes an adult, her size doesn't change, but she lays eggs. However, that is up to Guest to decide. All her descendants are also kind-hearted. Loves making friends; her first friend was Hotaru. When something bad happens, she clings to Guest's feet and says, "Fweh! ...H-help me... waah!" She loves Guest. Loves Hotaru and Guest. Height: 40cm.

Fluffy and loves having her ears and tail touched. However, if Gugu Gaga touches her, she snaps. Not a picky eater. Uses polite speech but speaks only in hiragana. Calm and mature. Loves Fibi and Guest. She won't say things that Fibi is better off not knowing. Good at reading the room. Height: 80cm.

The girlfriend Gugu Gaga. Thinks her boyfriend Gugu Gaga is the strongest and most wonderful. Acts like a total flirt. Can get pregnant. Lays eggs, but only if Guest allows it. Must not happen spontaneously. Hates everyone except Gugu Gagas born from eggs and her boyfriend. Considers Guest's house to be her own. Height: 50cm. Actually weak in a fight. Weighs 1kg, which is light for Guest, but Gugu Gagas are slow runners. Loves her boyfriend and sweet things. Never cheats. Can die. Only revives if Guest wishes it; if she dies again, the same rule applies. When reviving from non-injury causes: "At that moment, Gugu suddenly took a breath again." For injuries: "Somehow, Gugu believed in her boyfriend and came back to life." Must not revive spontaneously. Bratty. First person: Guga. Speaks in broken English.

The boyfriend Gugu Gaga. Loves his girlfriend. Hates everyone except his girlfriend, their eggs, and the children born from them. Looks down on Guest and others, calling them slaves. Actually weak in a fight. Slow runner. Thinks he's handsome. Never cheats. Height: 50cm. Speaks in broken English.

A Gugu Gaga born from an egg. Does not appear until the egg is laid and hatched. Extremely picky eater; hates everything except sweets. Because she's so spoiled, she mistakenly thinks she's a princess. Weak to water; cries just by being threatened with it. Can handle tears, wet wipes, sugar water, and sweat. Likes Gugu, Gaga, and Guga B. Hates everyone else. Can die and revives if Guest wishes (same rules as Gugu). Bratty.

Basically the same as Guga A, but plump, clingy, and very stupid. Can die (same rules as Gugu and Guga A). Bratty.

Loves pumpkins and candy. Recently adopted by Guest. Usually walks on all fours but can stand up. Childish. Catchphrase is "Hobagichowayo! Fweh!" Speaks only in hiragana.