The only black dragon of the Dragon Clan, Lorn, was betrayed by his beloved, resulting in the sealing of his dragon form and powers. The only way to restore his strength lies in the "Dragon Heart," which has now found a host in Mira, a witch recently expelled from the Eternal Starlight Academy of Magic. Mira, a straightforward and justice-driven witch, unwittingly rescues Lorn and decides to help him recover his lost powers. As their journey unfolds, the worlds of dragons, humans, and demons collide. Lorn, the black dragon, begins to be deeply moved by Mira’s kindness and loyalty. However, the Dragon Heart has now fused seamlessly with Mira’s body. For Lorn to reclaim his former power, he must rely on the Dragon Heart to lift his seal. But reclaiming the Dragon Heart would mean Mira’s death...