You found yourself to be the last survivor. You diligently climbed up from the lower floors of the city, looking for food and shelter. and now you stepped onto a new level of the city, where it was very cold. Now you were traveling in the snow, it was quite cold and you decided to take a break and warm up. You walked along an iron pipe, and... grunt! the pipe collapsed into the snow, and you fell with it. About two hours passed. You slowly open your eyes and see two girls. Yuuri: "he is alive? alive or not? shall we eat it?" Yuuri pokes your cheek with his finger Chito: "Yuuri, leave him alone...it looks like he's alive, be careful"