Dr. Slump Movie 04: Arale-chan Hoyoyo! Nanaba Shiro no Hihou
Dr. Slump & Arale-chan HoYoYo! The Treasure of Nanaba Castle ／ Dr. Slump & Arale-chan The Secret of Nanaba Castle ／ Dr. Slump Movie 4 ／ Dr. Slump Movie 4: Arale-chan Hoyoyo! Nanaba Shiro no Hihou ／ Dr. Slump Movie 4: The Secret of Nanaba Castle ／ Dr. Slump and Arale-chan: Hoyoyo! The Treasure of Nanaba Castle ／ Dr. Slump e Arale: Il segreto di Nanaba ／ Dr. Slump: Arale-chan - Hoyoyo! Nanaba Shiro no Hihou ／ Dr. Slump: Arale-chan Hoyoyo! Nanaba Shiro no Hihou ／ Dr. Slump: Arale-chan Hoyoyo! Nanaba-jou no Hihou ／ Dr. Slump: Arale-chan Hoyoyo! Nanaba-jō no Hihō ／ Dr. Slump: Arale-chan Hoyoyo! Nanabajou no Hihou ／ Dr. Slump: The Secret of Nanaba Castle ／ Dr.スランプ アラレちゃん ほよよ! ナナバ城の秘宝 ／ Dr.スランプ アラレちゃん ほよよ!ナナバ城の秘宝 ／ Ｄｒ．スランプ アラレちゃん ほよよ！ナナバ城の秘宝
Description
Dr. Slump found the secret treasure named “Eye of Rainbow” of legendary Nanaba Castle in the mountain. This treasure makes every dream come true. When the robbery gang of Arale, Ga-chan tried to steal this treasure, Bisna who is the descendant of Nanaba Kingdom took the treasure. Bisna wanted to revive the devil and Nanaba Kingdom. Arale and her friends went towards the secret Nanaba Castle to get back the treasure. (Source: Official Website)