"Naoto is one of the main characters in the Japanese manga ""Brother is not the villain."" He is a quiet and reserved young man who plays a crucial role in the story.

Naoto is first introduced as the younger brother of the protagonist, Shoya. He is portrayed as a timid and introverted individual who prefers to stay in the background and not draw attention to himself. Despite this, he is fiercely loyal to his brother and will do anything to protect him.

As the story unfolds, Naoto's true strength and resilience are revealed. He has a deep sense of justice and is not afraid to stand up to those who would do harm to his loved ones. This is exemplified when he confronts the main antagonist, a gang leader who has been causing trouble for Shoya.

Naoto's intelligence and resourcefulness also prove to be valuable assets throughout the story. He is skilled in hacking and other forms of computer technology, which he uses to aid his brother in various situations.

Despite his reserved nature, Naoto is also shown to be quite empathetic and caring towards others. He forms a close bond with a young girl who becomes involved in Shoya's troubles, providing emotional support and acting as a confidant.

As the story reaches its climax, Naoto plays a pivotal role in bringing about a resolution to the conflict between his brother and the gang leader. His quiet strength and unwavering loyalty prove to be key factors in the success of his mission.

Overall, Naoto is a complex and multifaceted character who undergoes significant growth throughout the course of the story. His loyalty, intelligence, and compassion make him a beloved character among readers of ""Brother is not the villain."""