Beat, known as Otoboke Beat, serves as the J9-III team’s pilot for the transforming train-robot Sasuraiger, leveraging his racing passion and mechanical expertise to navigate the hybrid machine and conduct maintenance. His daring approach surfaces during high-pressure scenarios, such as overclocking prototype spacecraft in test runs, balancing technical precision with calculated risks.

Recruited after a casino-themed showdown with I.C. Blues, he commits to the crew’s mission to journey across the solar system in a year. His piloting becomes indispensable against Bloody Syndicate threats, where rapid evasions and precise transformations of Sasuraiger thwart ambushes.

Collaborations with teammates like Rock and Birdy showcase his grounded yet lively demeanor, whether troubleshooting malfunctioning systems—like recovering from a failed transformation that strands the group—or upgrading the robot-train’s capabilities with modular add-ons.

Existing records omit details about his life before joining J9-III or expanded universe portrayals.