Coming to Rajima Volcano to heal their wounds, Leviatan and her friends decide to spend the night at an inn. While the extravagant meals, soft beds, and massages leave nothing to be desired, for some reason, the hot springs only have a little water in them. Unable to understand the reason for the loss of hot water, business has been poor, and the inn is in danger of being shut down...
The fantasy world of Aquafall is abound with water and greenery, and populated by dragons and fairies. Meteorites of evil creatures threaten all living things on the planet. The fairy Syrup assembles the Aquafall Defense Force, with three girls of the dragon clans as recruits. The story follows Syrup and the dragon girls Leviathan, Bahamut, and Jörmungandr as they work together to battle enemies and grow up.
