Takuya begins the series as a typical "goggle boy"—energetic and athletic, but tend to act without thinking and very stubborn. He has a strong sense of justice and tries to use his power to do what he believes is right. His hot-headed personality often leads to him arguing with Koji Minamoto, another of Digimon Frontier's main characters, however, they learn to respect each other toward the middle of the series, after their first encounter with Duskmon, and become good friends and partners