Fuku  

Fuku-chan, フク

Fuku, the handmaiden of Mikeru, is a unique creature with the body of a bird and the head of a human. In Mikaru's presence, Fuku appears to be just an ordinary bird in a cage. However, he secretly spies on Mikeru and reports everything back to him. Despite his adorable appearance, Fuku is actually more cunning than Mikeru.