The story revolves around Leo Green and his friends in the western fantasy continent. They initially set out to find the legendary 'Key to the Mist' that could grant wishes, but gradually discovered that they were involved in a huge conspiracy to subvert the world. Every adventure is full of comedy and dangers, and the team members' personalities are constantly in conflict, but their friendship is revealed at key points. Gradually, they grow up together in a journey full of laughter, curses and crises, unlock their own secrets, and compete wisely and bravely with the dark forces of the black mist mage Frank. In the end, the ultimate battle about sacrifice, friendship and salvation ended with an unexpected ending. Leo and others did not change the nature of the world, but they protected their own little happiness and dreams.
