The story is set in Aquafall, a fantasy world abound with water and greenery, and populated by dragons and fairies. Meteorites suddenly bring forth evil creatures that 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.

The signing of a peace treaty has secured a tenuous ceasefire between mankind and the Zex, beings who emerged from space/time rifts connected to mysterious, distant worlds. Partnered with a Zex named Rigel, Azumi Kakamigahara must shoulder the fate of her own idyllic world. The unlikely pair head to newly established Fujimisaki Academy, where their destinies await.

Picture drama specials included on the Blu-ray/DVD volumes.

After falling in battle, the samurai Jin wishes to be reincarnated with an "invincible metal body"; thus he is reborn as a coffee vending machine in present-day Seoul. Each night, he continues his eternal battle with other samurai who have been reincarnated as otherwise mundane objects. But, one day, he meets Hemi, a girl who buys a drink from Jin's vending machine body. After many similar encounters, Jin realizes he has fallen in love with her. Will his love be able to reach Hemi?