Vice-commander of Koala Forest Academy. Also known as Captain Koala's mount. She acts as the spokesperson for the Captain, who cannot speak, and could be seen as the Captain's puppet—though some team members suspect she is actually manipulating the Captain for her own convenience, a claim she flatly denies. She has a very serious personality and a strong sense of justice, but she has a habit of wandering off and occasionally goes missing. Female. She understands Koala-speak (?).

Second vice-commander of Koala Forest Academy. She is the inventor of the 'Koalingual,' a communication tool for Captain Koala, though its translation accuracy is only about 55%. In contrast to the serious Warabi, she is always relaxed and natural. She is talented at singing and dancing, which is apparently a natural gift rather than the result of hard work. She collects raw opals (somewhat haphazardly). She likes grapeseed oil. Female.

Commander of Koala Forest Academy. Name unknown. Since everyone just calls him Captain Koala, that might be his name, or it might not. Usually a very calm and soothing character, but once he loses his temper, he goes on a rampage that is impossible to control. However, rest assured that he cheers up quickly and immediately forgets what he was angry about. He cannot speak; when he communicates, Warabi leans in close to his ear and provides a literal translation.