The story begins as Neku Sakuraba, an unsociable 15-year-old boy, unexpectedly wakes up in the Shibuya shopping district of Tokyo, Japan. While trying to piece together his rude awakening, he receives a strange text message warning him that he will cease to exist unless he accomplishes a certain mission. Although he barely has time to grasp what is happening to him, he commences his assigned task in the mysterious streets of Shibuya.