Sora

As a loyal crow befriended by Misuzu, this avian companion plays a surprisingly pivotal role despite its minor status. While initially appearing as a simple pet, the creature frequently intervenes in key moments, such as locating Yukito Kunisaki's lost puppet or nudging Misuzu's dinosaur toward the shrine. Though much of its presence seems incidental throughout the series, a profound revelation regarding its true identity serves as a significant climax during the final episodes.