Reality quickly unravels when antisocial Yukiteru is called into a death match against 11 other mentally scarred individuals. Each player has a prophetic device tuned to their personality, giving them control over their future—and the fate of their foes.

For as long as he can remember, Ichigo Kurosaki has been able to see ghosts. But when he meets Rukia, a Soul Reaper who battles evil spirits known as Hollows, he finds his life is changed forever. Now, with a newfound wealth of spiritual energy, Ichigo discovers his true calling: to protect the living and the dead from evil.

In the near future, humanity has taken its first steps towards journeying into the far reaches of the galaxy. Upon doing so they discover a huge race of insectoid aliens known as "Space Monsters." These aliens seem dedicated to the eradication of mankind as they near closer and closer to discovering Earth. In response, humanity develops giant fighting robots piloted by hand-picked youth from around the world. Shortly after the discovery of the aliens, Noriko Takaya, the daughter of a famous deceased space captain, enters a training school despite her questionable talents as a pilot. There, she meets her polar opposite, the beautiful and talented Kazumi Amano, and is unexpectedly made to work together with her as they attempt to overcome the trauma of war as well as their own emotions.

A week before Christmas, Kyon wakes up in a world where the SOS Brigade doesn't exist. Mikuru and Yuki don't recognize him, and Haruhi and Itsuki seem to have vanished.