It's a beautiful day in Springdale, and there's a new family in town. However, there seems to be something wrong with the youngest child: she's always super-sad and refuses to talk to anyone! Nate and Hailey, who'd given her a tour of Springdale Elementary on her first day, quickly notice this. Can they and their Yo-Kai friends cheer her up? (Hailey is the localized name for Inaho)