Asuka Sugo, daughter of SUGO Corporation CEO Kojiro Sugo, holds dual roles as deputy owner and team representative for the Sugo racing team, serving as both its mascot and emotional core. Her lifelong bond with Hayato Kazami, forged through their fathers’ friendship, matures into romance by the close of the 2015 racing season. Actively engaged in team operations, she manages logistics, navigates crises, and contributes to strategic decisions.

In 2017, she showcases steadfast resilience following Hayato’s near-fatal accident, briefly accepting his marriage proposal before ending the engagement when he resumes racing despite prior vows to retire. A period of distance follows, resolved through teammates’ intervention, prompting her return to the paddock. Reconciliation culminates in a renewed engagement ahead of the ZERO season finale.

Driven by academic ambition, she transfers to Columbia University to study medicine, aspiring to aid injured athletes while maintaining ties to the racing world. Her relocation to the U.S. underscores a balance between personal ambition and team loyalty. By the SIN arc’s conclusion, she and Hayato marry, solidifying their partnership.

Notable traits include her evolving culinary expertise—marked as a specialty—contrasted with a noted struggle behind the wheel. Born March 14, 1999, with blood type O, her narrative weaves emotional dedication to Hayato with individual growth, intertwining professional resolve, relational loyalty, and self-driven aspirations across pivotal life chapters.