The “Kingdom of Bones” controls other country and threatens the freedom of the world. Tsunashi, the prince of the destroyed Kingdom of Karan, has a secret power and fights against the “Kingdom of Bones.” His powers are awakened with the sacrifice of the life of his best friend. Tsunashi begins his journey to fight against Kingdom of Bones alone. This epic fantasy is written by Masahito Soda, the author of Firefighter! Daigo of Fire Company M, Shakariki!, Subaru, and MOON.