★ To celebrate the newly formed sister-city relationship between Kasukabe and Musibai (in India’s Hagasimil State), the Kasukabe Kids Entertainment Festival is held.
Shinnosuke and his friends learn that winners of the dance competition will be invited to India to perform on stage. Excited, they team up, win the contest, and head off to India.
★ During their sightseeing, Shinnosuke and Bo-chan stumble upon a mysterious shop and buy a nose-shaped backpack. Unbeknownst to them, the bag hides a dark secret.
Bo-chan accidentally pokes his nose with a strange paper from the backpack and becomes possessed by a terrifying force, turning into a rampaging tyrant with powers that threaten the world.