"Emily of New Moon" is an anime adaptation of Lucy Maud Montgomery's novel of the same name, part of the Emily trilogy. The series centers on Emily Byrd Starr, a young girl with a vivid imagination and a passion for writing. After the death of her father, Douglas Starr, Emily is sent to live with her mother's relatives at New Moon Farm on Prince Edward Island. Her new guardians are her strict Aunt Elizabeth Murray, her more lenient Aunt Laura Murray, and their cousin, Jimmy Murray.

Emily struggles to adapt to her new life under the rigid rules of Aunt Elizabeth, who disapproves of her imaginative nature and writing ambitions. Despite these challenges, Emily finds solace in her friendships, particularly with Ilse Burnley, a spirited and outspoken girl, and Teddy Kent, a quiet and artistic boy. She also befriends Perry Miller, a hardworking and ambitious orphan who dreams of rising above his humble beginnings. Together, they navigate the trials of childhood and adolescence, forming deep bonds that shape their lives.

Throughout the series, Emily's talent for writing becomes a central theme. She often turns to her journal and poetry to express her emotions and observations about the world around her. Her creative spirit frequently clashes with the expectations of her conservative community, but she remains determined to pursue her dreams. The narrative explores themes of family, identity, and the pursuit of artistic expression, as Emily learns to balance her individuality with the demands of her environment.

The story also delves into the complexities of relationships, both familial and romantic. Emily's interactions with her aunts reveal the tension between tradition and individuality, while her friendships with Ilse, Teddy, and Perry highlight the importance of loyalty and understanding. As the characters grow older, their relationships evolve, with Emily facing challenges that test her resilience and sense of self.

The series captures the beauty and hardships of rural life in early 20th-century Canada, with its picturesque landscapes and close-knit community serving as a backdrop to Emily's journey. The narrative is rich with emotional depth, exploring themes of loss, love, and the enduring power of creativity. Through her trials and triumphs, Emily emerges as a compelling protagonist whose story resonates with themes of perseverance and self-discovery.