"Violet Evergarden" is set in a post-war world where the titular character, Violet, a former soldier, struggles to reintegrate into society. Having been raised as a weapon and conditioned for combat, Violet possesses exceptional physical abilities but lacks understanding of human emotions and social norms. After losing both arms in the war, she is fitted with mechanical prosthetics and begins working as an Auto Memory Doll, a profession dedicated to transcribing people's thoughts and emotions into letters.

The series unfolds episodically, with Violet taking on various assignments that bring her into contact with individuals from diverse walks of life. Through these interactions, she gradually learns about love, grief, regret, and other complex emotions. Each episode explores a different client's story, often revealing poignant and heartfelt narratives that highlight the human condition. Violet's journey is not only one of professional growth but also of personal discovery as she seeks to understand the meaning of the words "I love you," spoken to her by her former commanding officer, Major Gilbert Bougainvillea, whose fate remains uncertain after the war.

As Violet delves deeper into her work, she begins to piece together fragments of her own past and the relationships she formed during the war. Her quest for emotional understanding is paralleled by her search for Gilbert, whose absence haunts her. The series balances Violet's personal arc with the stories of those she helps, creating a tapestry of interconnected experiences that emphasize themes of healing, communication, and the enduring impact of war on individuals and society.

The supporting cast includes Claudia Hodgins, the founder of the CH Postal Company and Violet's employer, who acts as a paternal figure; Cattleya Baudelaire, a fellow Auto Memory Doll who offers guidance; and Benedict Blue, a courier with a sharp tongue but a protective nature. These characters provide additional layers to the narrative, offering insights into Violet's growth and the world around her.

"Violet Evergarden" is a character-driven story that combines emotional depth with a richly detailed setting. Its exploration of human emotions and the aftermath of conflict resonates through its episodic structure, making it a poignant and thought-provoking series.