Gaara, known as Gaara of the Desert, is a shinobi from the hidden village of Sunagakure, also known as the Village Hidden in the Sand. He is the youngest child of the Fourth Kazekage, making him the younger brother of Temari and Kankuro. Before his birth, his father ordered a powerful technique to seal the One-Tailed beast, Shukaku, within him, intending to create the ultimate weapon to protect their village. This act caused the death of his mother, Karura, during childbirth.

As a child, Gaara was a timid and gentle boy, but his life was marked by profound isolation and betrayal. The villagers of Suna feared him as a monster due to the demon inside him. For a time, he believed his maternal uncle, Yashamaru, was the only person who cared for him. However, on the orders of the Fourth Kazekage, who deemed Gaara a failed and dangerous experiment, Yashamaru attempted to assassinate the young boy. Before dying, Yashamaru revealed that he had always hated Gaara for being the cause of his sister Karura's death. This shattered Gaara's understanding of love and connection. Concluding that no one would ever love him, Gaara carved the kanji for love into his forehead, vowing to live only for himself and to prove his own existence by killing anyone who crossed his path. His inability to sleep, for fear that Shukaku would consume his mind, led to the dark rings around his eyes and contributed to his unstable mental state.

Gaara first appears as a primary antagonist during the Chunin Exams held in the Hidden Leaf Village. He is a ruthless killer who shows no regard for human life, demonstrated by his brutal defeat of Rock Lee, crushing his arm and leg. During his fight with Sasuke Uchiha, the invasion of the Leaf Village begins, and Gaara transforms partially into Shukaku. However, a battle with Naruto Uzumaki changes his entire worldview. Naruto, a jinchuriki like himself who also grew up alone and hated, shows Gaara that true strength comes not from fighting only for oneself, but from the desire to protect one's precious friends and comrades. Defeated and moved by Naruto's words, Gaara begins his path to redemption. He later assists in the mission to rescue Sasuke, arriving to save Rock Lee from the enemy Kimimaro, demonstrating his newfound respect for others.

By the time of Naruto Shippuden, Gaara has undergone a remarkable transformation and has become the Fifth Kazekage of Sunagakure, earning the respect and trust of his people who once feared him. As a leader, he is calm, level-headed, and deeply committed to protecting his village, even at the cost of his own life. This is shown when he is captured and killed by the Akatsuki member Deidara after shielding Suna from a massive explosion. He is later revived by the elder Chiyo, who sacrifices her life to bring him back. Gaara credits Naruto for saving him from his life of hatred and considers him a close friend, acting as one of his strongest and most reliable allies. His key relationships include his siblings, Temari and Kankuro, with whom he reconciles, and his father, the Fourth Kazekage. During the Fourth Great Ninja War, Gaara confronts his reanimated father, who finally admits that Gaara's mother always loved him and that her will, not Shukaku's power, was the source of the sand that automatically protected him.

Gaara's abilities are centered on his unique and powerful control over sand. Although he loses Shukaku when it is extracted from him by the Akatsuki, Gaara remains an exceptionally formidable shinobi, with his power now coming entirely from within himself. His signature techniques include the Absolute Defense, where sand automatically rises to block any attack, and the Sand Armor, a protective layer covering his body. For offense, he uses techniques like Sand Burial and Desert Coffin, which encase and crush enemies. He can also create a Third Eye with sand for long-range surveillance and use abilities like Desert Suspension to create floating platforms for flight. Later, he gains the ability to manipulate gold dust, a technique inherited from his father.