On the island of Hikari-jima, an ancient promise binds the living world to the realm of dragons. When this delicate balance is threatened, two cousins must uncover the truth behind their family's legacy-and face trials that will shape their destiny.
Ryota, a brave but directionally-challenged martial artist, and Mei, his brilliant and resourceful cousin, are drawn into a labyrinth of riddles, spirits, and dragons after discovering an ancient scroll hidden in their family's dojo. Guided by their wise grandparents Shiro and Yumi, and accompanied by the mischievous spirit fox Raiju, they embark on a journey to unravel the secrets of the Red Tower and the labyrinth it guards.
Their quest takes them from the bustling streets of Akihara to the grand libraries of Isokaze and the haunting ruins of Elarith. Along the way, they encounter Konimoku, the first dragon of fire, forging bonds with the spirit world that will change their lives forever.
But the labyrinth is no ordinary place-it is a realm of shifting paths and ancient guardians, testing not just their courage but their very worthiness. As the mystery deepens, Ryota and Mei must rise to the challenge, discovering the true meaning of sacrifice, unity, and the weight of their Dragon Debt.
Step into the world of Dragon Debt, where legends come alive, bonds are forged, and the balance between two worlds hangs by a thread.
Ayame Akiyama is a "normal" high school student living a "normal" life, but she notices that as her 16th birthday nears her friends and family all began to act strange. Unbeknownst to her that once that day come everything in her seemingly normal life will change when she is chosen to be the one to decide whether to create or destroy. The future of her home and everything she loves is in her hand. One choice leads to salvation and the other leads to utter destruction her journey will take her on many routes to come to the correct choice.
Katsumi Nakajima is a half breed who has a dark past. His fate is tied to Ayame, but he only knows of her through his dream; not only that he has lost his purpose to live. Katsumi is a special type of person in the three realms, but he doesn't think that he is because of him being a curse to those around him. Can he change the cards that fate has handed him, or will he continue to fall victim to her?
Two time periods connected between two people, a dark connection between heaven, earth, and hell, a being that can destroy everything they hold dear, and the mystery that is Ayame's and Katsumi's true selves. But there's one phrase that will weigh heavily on their minds.
"Find happiness even in the darkest moments."