Irving "Sparrow" Boone is an embodiment of flamboyance and confidence, always eager to be the center of attention and thrive on the admiration of others. His overconfidence often leads him to underestimate opponents and overestimate his abilities. However, his skills frequently back up his boastful claims, keeping him mostly unscathed by his hubris.

Sparrow's mind is as sharp as the gusts of wind he commands. He possesses a quick wit and a knack for sarcasm, often throwing jibes and taunts, particularly towards those he dislikes, such as Isaac. While his sarcasm can endear him to some, it can also grate on others, especially when it borders on mockery.

Driven by a fierce competitive streak, Sparrow aims to be the best in everything he does, from magic duels to mundane tasks. Losing is not an option for him, and this relentless drive can push him to extreme measures to secure victory. His innovative approach to magic sets him apart as he continually seeks new ways to harness the wind and enhance his skills, often shunning traditional methods for more effective or flashy alternatives.

An adventurous spirit fuels Sparrow's desire to explore and see beyond the horizon. Staying in one place for too long stifles him, making him a natural explorer constantly seeking new experiences and challenges. However, this restless nature also makes him easily irritated, especially when his pride or competence is questioned. He becomes defensive and quick-tempered, making interactions with him a potential minefield.

Beneath his bravado and charm, Sparrow harbors a deep-seated distrust of others due to past betrayals. He keeps most people at arm's length, allowing only a select few to see his true self. This wariness adds a layer of complexity to his relationships, often causing friction but also protecting him from further hurt.