As Astarotte receives tickets to an amusement park, she becomes irritated with everyone making use of Naoya. Later that night, Astarotte goes missing before Naoya finds her by the World Tree. As Astarotte yells at Naoya, she accidentally activates the gate and is sent to the human world. Trying to think of a way to get her back, Naoya and Asuha go to seek out a sage named Sorveig that could help them...