A free trial of the Prologue will be available in October 2023.

A high school campus is on edge under a series of mysterious disappearances...
A post-apocalyptic wasteland is in the midst of a zombie crisis...
Both of the worlds, both of the crises are the truth presented.
The worlds cross on you.
You are the only one who can travel between the worlds, and the key to changing the fate of many characters is in your hands.

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• Play 4+1 story branches and develop relationships with characteristic girls.
  
• Experience a high degree of freedom with plot options & rich feedback on character favorability.
  
• Clear levels with real-time battles.
  
• Discover alien items and discover their truth in the other side of the world.