Otoishi is highly self-centered, using his newfound power to steal from various people and wreak havoc among the town, and even killing whoever gets in his way without hesitation. He is dedicated to his craft as a musician; wishing also for recognition or fame as a Rock star. After he is released from prison, he continues to pursue this goal. Otoishi expresses himself through his guitar, such as channeling his anger at Josuke for breaking his pinky.