The protagonist, Akechi, and the heroine, Tominaga, find themselves held captive in a prefabricated laboratory. Trapped in a facility filling with poison gas and under the watchful eyes of chemist suspects, they join forces to escape—but Akechi is suffering from temporary amnesia and cannot recall a crucial piece of information... What fate awaits Akechi?

① 14 event CGs, each meticulously illustrated!
② Fully voiced by a star-studded cast!
③ Includes a gallery to revisit scenes anytime!
A suspense-filled adventure with a linear storyline that keeps your heart pounding until the very end!