Kensuke Hayami is a fictional racing driver in the narrative of Hairpin Double. He serves as the primary driver for his family's historic Hayami racing team. Despite his youth, Hayami has claimed multiple race victories, establishing a reputation as a notably skilled and fiercely competitive driver. His driving is defined by precision split-second decision-making, a key factor in his on-track success. Hayami relentlessly seeks challenges and strives to improve his abilities. He maintains a reserved demeanor, focusing intensely on his goals and demonstrating deep dedication to racing. His driving philosophy is captured in the statement: "It's not the car, it's the driver."