Hinata's relationship with his sister Natsu is a significant factor in shaping his passion for volleyball. Natsu played a crucial role in introducing Hinata to the sport and inspiring him to pursue his love for volleyball. Her support, encouragement, and belief in his abilities have fueled Hinata's determination to excel in the sport. Natsu's influence instilled in Hinata a deep passion for volleyball, driving him to work hard, overcome challenges, and strive for success in the sport he loves.