Sergeant Keroro The Super Duper Movie 4: Crushing Invasion, Dragon Warriors

Giant, enigmatic creatures known as "Ryū no Shippo" ("Dragon Tails") emerged around the world. Fearing the threat they posed, the Keroro Platoon launched a global investigation into these beings. However, during their research, Tamama vanished without a trace. The platoon set out to find him, leading them to Mont-Saint-Michel in France. There, they encountered a mysterious girl named Sion, who possessed the equally puzzling "Ryū no Hon" ("Dragon Book"). Unbeknownst to them, Sion hides secrets tied to a looming catastrophe-one that could reshape the world as they know it.