Scientist Ichiroubei Hiiragi discovers the existence of Six Gates, an otherdimensional world full of monsters and powerful hidden treasures known as Mon Mon Items. Ichiroubei embarks with his daughter, Rokuna, and her classmate, Mondo. However, they're foiled at every turn by Count Collection and his assistants, who want the Mon Mon Items in order to conquer both worlds. Becoming the heroes known as Mon Colle Knights, Mondo and Rokuna join forces with the monsters, striking back against Count Collection while searching for the Mon Mon Items in the name of friendship between their worlds.
Tomo Saeki
Mondo Ooya (voice)
Yui Horie
Rockna Hiiragi (voice)
Shigeru Chiba
Professor Ichiroubei Hiiragi (voice)
Yuko Mizutani
Jāne (voice)
Kazuhiko Inoue
Count Ludwig Presto Von Meinstein Collection (voice)
Yuka Imai
Guko (voice)
Maria Yamamoto
Repuri (voice)
Yumi Kakazu
Songstress of the Flower Garden (voice)
Mika Kanai
Beginner (voice)
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