Fastening Days 3

In a quiet town, a group of unlikely companions – Youji, Kei, Kelly, and a peculiar bear-shaped robot named Oscar – find themselves thrust into an unexpected crisis. While celebrating Youji's birthday, they confront a rapidly escalating situation as an uncontrolled airship appears above the city. The narrative follows their efforts to resolve this unusual threat, showcasing a blend of action and interpersonal dynamics.

The story emphasizes the bonds between these characters, particularly the close relationship between Youji and their caretaker, Anna. As they navigate the unfolding events, they encounter advanced technology in the form of an evolved Fastening Machine, hinting at deeper mysteries surrounding the town's history and the nature of their abilities. The series explores themes of community, responsibility, and finding meaning amidst unforeseen challenges within a subtly fantastical setting.