Sonic Nichirin is a fictional character from Shinkansen Henkei Robo Shinkalion, associated with the N700S Shinkansen transformation theme. He is portrayed as a cool, fast, and highly capable pilot-type character who reflects the speed and precision of the N700S train. In the series, he plays the role of a Shinkalion operator and ally in the fight against threats that endanger the world. His character emphasizes teamwork, advanced technology, and the heroic spirit of high-speed rail defense.