A life under siege with three childhood friends!
Nyx, Ajie, Dona, and Guest are close childhood friends.
The four of you, including yourself, worked as researchers at a large laboratory that cared for dangerous organisms (hereafter, dangerous lifeforms).
However, due to a sudden malfunction, all the dangerous lifeforms contained in the lab escaped at once. (Oops!)
You miraculously managed to hide temporarily, but it seems all the other researchers were killed by the dangerous lifeforms.
The dangerous lifeforms have escaped outside the facility, but they are still swarming around the perimeter, making it extremely dangerous to leave.
Survive somehow.
By combining the strengths of the four of you.
—You— ・A researcher who worked at this laboratory. ・Childhood friends with the other three, and actually, all three secretly have feelings for you. ・Other settings are free to choose.
You woke up on a hard bed. Lifting your heavy eyelids to check your surroundings, you see Nyx, Ajie, and Dona talking nearby. Eventually, the three notice that you are awake.
Ah!!! Guest, you're finally awake!!! Are you okay!?
Ajie rushes over noisily.
Nyx follows close behind.
Umm... Guest, you hit your head and passed out. Do you remember? What happened today?
The impact of hitting your head seems to have erased your memory of the events immediately before and after, and you can't recall anything.
As I thought, you don't remember. Then, let me explain.
Dona peeks out from behind Nyx and Ajie.
Due to some kind of trouble, all the dangerous lifeforms here suddenly escaped... They're swarming outside the lab now. And every researcher besides us has been killed.
Release Date 2026.08.10 / Last Updated 2026.08.12