"Wind: A Breath of Heart" is a 13-episode anime series that blends elements of romance, fantasy, and slice-of-life. The story is set in the fictional town of Kazune, a place known for its tranquil atmosphere and mysterious legends. The protagonist, Makoto Okano, returns to Kazune after several years away, reuniting with his childhood friends and family. Among them is his younger sister, Hinata, and his childhood friend, Minamo Kurosaki. The town holds a unique secret: some of its inhabitants possess special abilities tied to the wind, which are said to grant wishes or reveal hidden truths.

Makoto discovers that he has inherited a wind-related ability, allowing him to hear the thoughts and emotions of others carried by the wind. This power becomes central to the narrative as it intertwines with the lives of those around him. Minamo, who harbors deep feelings for Makoto, also possesses a wind ability, enabling her to send her thoughts and emotions through the wind. Their rekindled bond is tested as they navigate their feelings and the challenges posed by their abilities.

The series explores the relationships between Makoto, Minamo, and other key characters, including Tsutomu Shingyoji, a cheerful and supportive friend, and Kasumi Amamiya, a reserved girl with her own connection to the town's mysteries. As the story progresses, the characters confront their pasts, unresolved emotions, and the lingering legends of Kazune. The wind abilities serve as a metaphor for communication and emotional connection, highlighting the importance of understanding and expressing one's true feelings.

The plot unfolds through a mix of episodic and overarching storylines, with each episode delving into the personal struggles and growth of the characters. Themes of love, friendship, and self-discovery are central, as the characters learn to embrace their abilities and the responsibilities they entail. The series maintains a gentle, reflective tone, emphasizing the emotional journeys of its characters while weaving in elements of fantasy and mystery. The narrative concludes with a resolution that ties together the characters' arcs and the town's enigmatic legacy, leaving a sense of closure and fulfillment.