Through an unexpected turn of events, an ordinary elementary school student, Hiro Enryuu, finds himself in the world of the "Dragon Collection" game. This is a world called Dragon Earth, where gods, humans, and monsters exist side by side. Those who roam this world using a magic book, called a Grimoire, and cards to summon monsters and search for treasures that bear the powers of dragons are called Dracolle Battlers. Despite his bewilderment, Hiro becomes a Dracolle Battler and, together with the friends he meets there, begins his adventure to become a legendary Dragon Master! (Source: Crunchyroll)

Mink is no ordinary teenage girl, being half-human and half-dragon. Her father had fallen in love with a red dragon he intended to kill, and instead of slaying the dragon, he married her. Their union gave birth to Mink, who inherited horns, a tail, retractable wings, and incredible strength—characteristics which signify her dragon half nature. Mink spends her days accompanied by her friend Pia, a dwarf girl with overprotective parents, and her best friend Lufa, an elf with great healing powers but impressively bad magic. The three find themselves mooning over the dreamy and charming dragonslayer, Dick Saucer. But in a sudden, absurd turn of events, Mink gets closer than ever to the object of her fantasies, only to realize that her love may never be reciprocated because of her dragon heritage. Thus, the trio sets out on a quest to find a potion that will make Mink fully human. They may unwittingly make enemies, but they are sure to have one heck of a good time. [Written by MAL Rewrite]

Straightforward and innocent Hisone Amakasu is a Self-Defense Force rookie stationed at the Air Self-Defense Force's Gifu Base. She was struggling with the fact that she sometimes hurts people unintentionally by her innocent words and decided to join the Air Self-Defense Force, hoping to maintain a certain distance from people. This decision led her to a fateful encounter which profoundly changed her life. It was the "OTF" dragon hidden in the base and it chose Hisone as his pilot. When it soared into the sky with Hisone, her fate as a dragon pilot was decided. It is said that dragons have a key to the future of the world... (Source: ANN)

After the defeat of the demon lord Hadlar all of the monsters were unleashed from his evil will and moved to the island of Delmurin to live in peace. Dai is the only human living on the island. Having been raised by the kindly monster Brass, Dai's dream is to grow up to be a hero. He gets to become one when Hadlar is resurrected and the previous hero, Avan, comes to train Dai to help in the battle. But Hadlar, announcing that he now works for an even more powerful demon lord, comes to kill Avan. To save his students Avan uses a Self-Sacrifice spell to attack, but is unable to defeat Hadlar. When it seems that Dai and Avan's other student Pop are doomed a mark appears on Dai's forehead and he suddenly gains super powers and is able to fend off Hadlar. The two students then go off on a journey to avenge Avan and bring peace back to the world. (Source: ANN)