Partnerパートナー; パートナー Partner; パートニャー; 瀬戸のグラン・マ; Paatonaa; Kẻ đồng hành; 伙伴; Partner

From ShoujoMagic: High school freshmen and twins, Nae and Moe, and Ken and Takeshi, enjoy their lives as students and close friends. Until Moe suddenly dies in a traffic accident...and her corpse disappears? Between the vanishing corpse and a pharmaceutical corporation, her three remaining friends are struck with the reality that something is amiss in their world...