Ao Tsubaki has green leaves acting as its feathers, and white stones to act as bones. It is about the size of a human head.
Ao is very friendly and helpful towards Rakan's group, often acting as the group's means of communication with other parties within the Amato Empire who have an immortal bird.
Ao, like all immortal birds, can combine with others of it kind to form a larger bird, or break down into smaller birds. It can also communicate with other Tsubaki birds within its mind. Once Chigusa reprograms the immortal birds to mimic sounds they hear, Ao is able to relay the words of faraway people when there is an immortal bird near them to Rakan's group.
Ao Tsubaki (青椿) has the characters for "blue" (青) and "camellia" (椿). It chose the first name "Ao" as an homage to the blue skies it remembered from long ago.
Ao Tsubaki was one of the birds living with Karaku before Rakan's group arrived at their village. It left to follow Rakan after the group's departure.
Ao is very friendly with Rakan (as well as with every other member of his group), often sitting on his shoulder or allowing hugs. At the end of the series, Ao remains living with the Guards.
- ↑ From Volume 20, Chapter 58.