Yeonui Pyeonji

A girl named Sori is known for her kindness, compassion, and strong sense of right and wrong, which unfortunately make her a target for bullies. After changing schools, she begins to face similar challenges until she discovers a series of mysterious letters. These lead her on an enchanting search through a secret realm hidden beneath her new middle school. The journey helps her find new friendships, appreciate the beauty of the natural world, and recognize the positive aspects of people.