Young Prince Coult grows up in the kingdom of Loon unaware that his mother was petrified by Medusa years ago, transformed to stone along with countless villagers. His father, King Stephan, made a terrible bargain to protect his remaining people: when Coult turns eight, he must swear allegiance to the evil spirit who took everything from them. On his eighth birthday, Coult refuses. Instead of submission, he declares war on Medusa and sets out across dangerous lands to find her and break her curse. Armed with gifts from the god Aganade and a pure heart, the young prince ventures into a world far harsher than the palace walls he's known. Each step of his journey tests whether his determination and kindness can survive against overwhelming darkness. This is a coming-of-age adventure where a child's impossible vow becomes the catalyst for an epic quest. Coult's innocence clashes with genuine danger as he discovers what it truly means to fight for those you love. The series balances wonder and peril, following one boy's transformation from sheltered prince to hero.