Sarah is a virtual artist and student at ADEN Academy, a member of the group BRT5, and Zoe's childhood friend. She excels at songwriting, playing various instruments, and sports. Her high skill level fosters expectations for similar ability in others, sometimes leading to critical remarks. Driven by a competitive nature, Sarah intensely focuses on winning the Lapin d'Or award, prioritizing practice and performance above all else. She discourages BRT5 from non-singing activities and initially resists non-competitive events. This drive stems from her past as a top performer surpassed by Zoe, fueling her desire to reclaim superiority.

During a festival banana tag game, Sarah displays tsundere-like behavior towards Zoe, revealing underlying affection beneath their rivalry. A turning point comes when Zoe outperforms her, prompting Sarah to reevaluate. She learns to value enjoyment and camaraderie over pure competition, softening her demeanor. While maintaining her high standards, she embraces teamwork and acknowledges personal connections within BRT5. Her journey concludes with a better understanding of balancing ambition with meaningful bonds, though the romantic subtext with Zoe remains unresolved.