Lucy McMillan (ルーシー・マクミラン,Rūshī Makumiran?) is a researcher for Shinsei Industries assigned to the YF-19 project. It is there that she meets the young and rough test pilot Isamu who immediately attracts her by his roguish nature and the bold way he asked her out for a date. She unwittingly gets herself entangled in the bitter love triangle between Isamu and his two ex best friends Myung Fang Lone and Guld Goa Bowman. In the end she reluctantly relinquishes her hopes for a romantic relationship with Isamu.