Hundreds of years have passed since a weather control satellite went haywire and started a war that destroyed the human race. After waking up from a long sleep, the android Laliberta met a clone girl named Speranza. Since Speranza could not live in the open air, the two interact with each other through a window... This is a series of stories depicting the thoughts and feelings of the girls surrounding the apocalypse.

(Source: Ichijinsha, translated)

1. **Saiteigi Suru Kibou** (再定義する希望)
2. **Tsugihagi no Kibou wo Idaite** (継ぎ接ぎの希望を抱いて)
3. **Tomoshibi no Kikaitachi** (灯火の機械たち)
4. **Kimi to Sekai no Owari wo Tazunete** (きみと世界の終りを訪ねて)