A small percentage of adolescents have onsets of special abilities. Yu Otosaka deftly uses an ability that takes over a target's body for five seconds to live the school life of an honor student, and gets accepted into a prestigious high school. Just when Yu is about to live a stable life in high school, a girl named Nao Tomori appears before him...

The information of an ability wielder that Kumagami relays to the student council on the day Yusa transfers into Hoshinoumi Academy points to a high school baseball pitcher that Tomori already had her eyes on. His ability is telekinesis. Against a pitcher that uses his ability to pitch what could be called diabolical balls, the Hoshinoumi Academy student council challenges him to a game of baseball to make him stop doing so.

The friends from student council and Ayumi come visit Yu who is hospitalized from his injuries. Among them is Tomori. During his conversation with Tomori, Yu makes a certatin decision.

The decision that Yu makes is to plunder the ability of every last wielder of a special ability on Earth.

It is a choice that provides salvation to every ability-wielder, but at the same time, it is a choice that makes Yu pay a huge price in return.