Sora runs a small law office in Shizukuishi, a quiet town in the Tokyo metropolitan area, while keeping an unusual family secret. The white dog at his side is actually his brother Fuuka, who has been transformed into a wolf and can return to human form only when the brothers are alone. Their legal work and daily life are shaped by the unresolved events that caused Fuuka’s condition and by an old enemy connected to the path that brought them there.