Nobunaga Odagiri is a supporting character in the Eternal Boys franchise. His surname Odagiri means "small field/rice paddy" and "paulownia," while Nobunaga translates to "trust, believe" and "long/chief/boss." He possesses multicolored hair and is described as a "genius with a great face," with a deep passion for motorcycles. Nobunaga is an immortal being who collaborates with a group of similarly immortal boys dedicated to protecting the world from dangerous supernatural creatures.

A skilled fighter, he frequently battles supernatural threats alongside his comrades, employing a sharp intellect for strategic planning during confrontations. Among his peers, he exhibits natural leadership qualities and demonstrates a strong sense of justice, serving as a motivational force in their collective mission. Nobunaga's personality incorporates sarcastic and bold traits, often manifested through joke-telling and witty commentary, which occasionally causes interpersonal friction. Despite this, he maintains unwavering loyalty to his allies. Psychological analyses within franchise-related media suggest personality alignments with ENFP and Enneagram 8w7 classifications, highlighting assertiveness, independence, occasional confrontational tendencies, fierce protectiveness of his freedom, and fierce protectiveness of his comrades.