Sarah Crescé is a close friend to Eliza and a member of the second-generation Borgman team battling the resurgent demon threat in Megalocity. She rescues Ken after he sustains severe injuries during a demon attack, transporting him to the Katsura Institute where Chuck Sweager performs Borgman augmentation surgery to save his life. This process transforms Ken into a Borgman, plunging him into initial confusion about his new existence. Sarah provides crucial support to Ken as he navigates this transformation and copes with the subsequent demon abduction of his sister Eliza. She encourages Ken through his emotional distress following Eliza's capture and facilitates his reconciliation with team coordinator Coats after their conflict. Her actions and steadfast support prove instrumental in helping Ken refocus his resolve, leading him to embrace his role as a Borgman to rescue Eliza and defend the world from demonic destruction. Sarah's presence within the second-generation unit at the Katsura Research Institute reinforces the team's solidarity confronting the demon threat under Chuck Sweager's leadership.