One of the last few people alive after a worldwide nuclear war. The world is now a desolate wasteland where survival is difficult. After years of barely surviving, Lena encounters a seemingly abandoned nuclear bunker. Turns out it isn't really abandoned, and is still controlled by a lonely AI named Ell1s.

It turns out the nuclear war was so sudden that nobody was able to get to the bunker in time, so there's an abundance of supplies. Before Lena can even react, Ell1s locks her in, in an attempt to prevent her from dying out in the wasteland eventually. As you would expect, she doesn't like that and despises him.