Watabe Katsuo has been falsely accused of something he didn't do. Which makes his reputation fall into ruin. No one believes him, not even family. This makes Katsuo gloomy, the perfect target for bullies. Katsuo decides to change after enrolling in a prestigious high school.

The world changed when planet sized spheres known as Astea suddenly appeared above major cities around the world. People are disappearing for a brief period and come back with supernatural abilities, but some have yet to return. Ito Kuro is up at night reminiscing about his childhood friend Ha...