D is a bioroid pilot who appears in the anime Tenchi Muyo! GXP Paradise Starting. Her background is marked by significant trauma, which has left her in an emotionally stunted state. This history of suffering profoundly shapes her personality at the outset of the narrative, making her a reserved and damaged individual. Despite her psychological scars, D begins to develop a meaningful affection for Kazuki, a character who becomes central to her personal journey.

Her primary role in the story involves not only her duties as a pilot but also a personal struggle against a figure named Himiko, a battle that is intrinsically linked to her troubled past. This conflict serves as the main driver of her character arc, forcing her to confront the source of her trauma. Through her relationship with Kazuki and her fight against Himiko, D gradually works to overcome her emotional numbness and past experiences. Her notable abilities are tied to her nature as a bioroid and her skills as a pilot, operating advanced machinery in the series' science fiction setting.