Luca, a cybernetically enhanced calico cat, operates as Team Satomi's sole non-human member. He synchronizes with Amy Stapleton during races, merging their personalities to amplify her capabilities as midfielder and tactical coordinator. His cybernetics facilitate communication, initially audible only to Amy during races but expanding to the entire team by the series' conclusion.

Luca deploys advanced computational skills to counter threats, notably thwarting Team White Snow's Max Erlich during a Season 2 hacking attempt by activating backup protocols to shield Team Satomi's systems—a critical intervention securing their final victory. His technical expertise complements Amy’s strategic intellect, jointly fulfilling the team’s "Smart Guy" role.

Personality-wise, Luca exhibits deadpan snark, particularly during clashes between teammates Takeshi and Liz. He maintains commercial endorsements, including his own cat food brand, and cultivates a friendly rivalry with Sola, the cybernetically enhanced dog co-piloting for Team Edgeraid’s Bjorn Johannsen.

Luca’s origins lack familial ties; discovered and bonded with animal-affinity Amy, their connection enables synchronization. When Amy sustains an injury against Team White Snow, Coach Andrei Rublev temporarily replaces her, sidelining Luca from races until her recovery.

His development peaks in the 2051 season opener, where all teammates gain the ability to hear his race communications, symbolizing enhanced unity. Throughout the series, Luca’s contributions extend beyond combat support to defending the team’s operational integrity against external threats.