Extra-Terrestrial Boys & Girls Part 2 -Hajimari No Monogatari- (Light Novel)

Touya and the others finally attempt to join the adults, but they are stunned to learn the full extent of the accident on the station and the cause: a comet set on a collision course with Earth by the rogue AI “Seven.” Now marked as targets by the UN 2.1, who fear the revival of Seven, Touya and the others join forces with Ducky and Bright and attempt to establish a connection with the comet. But in the meantime, Konoha’s implant is reaching the end of its lifespan! Will Touya be able to stop the comet and save Konoha?
Notice: This book is written in Japanese.