A post apocalyptic world that turns into a open world harem the moment the prologue ends. But, that's fine for the most part. The limitations imposed by the setting are window dressings and don't hinder your playthrough. The main strength here is the two distinct harem paths offered to the MC. Girls are cute with the sheriff Elin being my favorite. There's enough stuff to unlock that you'll need two saves to get every scene. Music and art are good for a 2D game. It's just a breeze to pass your time with and you'll be entertained enough. A strong four/light five stars.