Ryuji Iwasaki is one of the main characters in the tokusatsu series Tokumei Sentai Go-Busters. As Blue Buster, he is the team's calm and intelligent powerhouse, specializing in handling heavy machinery and combat situations that require strength and strategy. Ryuji is a dependable ally, always looking out for his teammates and using his analytical skills to solve problems. Despite his serious demeanor, he cares deeply for his friends and plays a vital role in the fight against Vaglass.