Manten no Hoshi to Aoi Sora

Synopsis

The manga's story centers on Shingo Nakazawa, a high school boy who remains emotionless, even as the rest of humanity is coming to grips with the possibility of extinction due to the approach of a world-ending meteor. In the beginning of the story, Japan thinks itself saved from disaster, only to face another one. (Source: ANN)

Alternative Setting

• Nanimo Nai kedo Sora wa Aoi