Through the stories of Koc’h, a young korrigan fascinated by tales, the series explores the legends and folklore of Brittany and the Celtic lands. Each volume brings together several stories devoted to fairies, korrigans, mermaids, buried treasures, spirits, and supernatural creatures drawn from these traditions. Traveling from Armorica to Ireland, Koc’h acts as a recurring guide between otherwise independent tales blending wonder, humor, mystery, and ancient beliefs. Together, the stories form a broad celebration of Celtic imagination and of the legends that helped shape the identity of these regions.