In request of Duke Crizeman, Milfeulle and Ranpha are sent to return his student ID card to an abandoned school in Area Enigma, a dangerous area which is said to be infested with pirates. They are suddenly attacked by robots while in the school. One of the robots shoots a beam at Milfeulle's heart, seemingly killing her. Is Milfeulle really dead? What will Ranpha do now?
クライズマン侯爵の依頼で、廃校となった彼の母校に生徒カードを返しに来たミルフィーユとランファ。だが、そこは海賊の温床と言われている危険地帯エリア・エニグマだったのだ。学校内に入ったミルフィーユたちは、突如謎のロボット達に襲われて……。
