Synopsis: Partner

High-school freshmen Nae and Moe, along with their close friends Ken and Takeshi, were living their lives to the fullest until tragedy struck. Moe passed away suddenly in a traffic accident, but things took a bizarre turn when her body went missing. This left her three remaining friends to question the reality of their world, leading them to suspect the involvement of a pharmaceutical corporation. The manga also features additional extras and oneshots, including "Seto no Grandma" published in Ribon Original in 1999 and "Partnyaa" published in Ribon Fuyu-yasumi Otanoshimi Zoukan in 2000.