ある大学病院の地下。
半導体工場のように明るく、広大な部屋の床一面に設置された死体保管設備。
従来の設備と違い、冷気に加えて特殊な光を当てて保存する。
冷凍しなくても今までの物と同等の長期保存が可能だという。
管理は全て室内の端末で行われ、出入時には自動的にログが残る。
室内や通路には防犯カメラもあるので誰の眼にも留まらずに死体を持ち出す事はまず不可能。

な筈だったのだがある日、保管庫にあった200体近い死体が一晩で全て消えてしまった。
ログやカメラには何も残っておらず、何かを見た者もいない。
残っていたのは保管庫の中にあった奇妙な粘液だけ。
この粘液が何かはまだ分からないが、まさか死体が溶けて流れてしまったとでも言うのだろうか・・・

It was in the basement of a university hospital equipped with a morgue. It was as bright as a semiconductor factory and the corpse storage facility was installed in a room with a large floor. It differed from other facilities in its preservation of the corpses by shining a special kind of lighting on them, as well as by circulating cold air. Apparently this facility could preserve corpses for as long as other morgues without freezing them. All tasks were performed from the terminal inside the room and an automatic log is kept when corpses are brought in or taken out of the morgue. It was impossible to sneak away with a corpse without somebody noticing because of the security cameras both inside the room and in the corridors.

At least, that seemed to be the case until one day all of the corpses, nearly two hundred of them, vanished from the storage area in a single night. Nothing showed up on the logs or security cameras and nobody had seen anything. All that remained was the strange mucus they found in the morgue. It was still unclear what this mucus was but could it have been that the corpses had melted away?