Saburou functions as the mechanic for Makoto's D-ranked FX racing team. His essential technical expertise focuses on maintaining and modifying the team's underpowered, homemade bipedal motorcycle mecha. Saburou demonstrates practical mechanical knowledge, though he occasionally employs expedient shortcuts during repairs. When the team acquires a new high-performance engine from the mysterious benefactor Gou, Saburou's skills become crucial for integrating this advanced technology into their existing machine. His role primarily supports the team's racing ambitions through technical preparations and maintenance, particularly during the Open Cup tournament where they compete against higher-class opponents.