Ukai
Overview
Ukai is a domestic cormorant belonging to Yonago, the fisherman who raised Rin. The bird assists Yonago in fishing, and it is thanks to Ukai that the household eats their fill every day.
Background
When Rin set off alone to find Orchid in the forest, she stroked Ukai’s head so he would go back to sleep, allowing her to depart without alerting Yonago. Years later, when Rin returned from her Muna training, Ukai croaked and flapped his wings at the sight of her approaching the shore with Orchid.