A bullied teen receives mysterious help from someone online: a stranger soon revealed to be her recently deceased father, David, whose consciousness has been uploaded to the Cloud following an experimental destructive brain scan. David is the first of a new kind of being – an “Uploaded Intelligence” or “UI” – but he will not be the last, as a global conspiracy unfolds that threatens to trigger a new kind of world war.

Jiro, who makes his living hunting beasts, encounters Kuumi, who is on the run, and saves her. As rumors spread regarding humanity and a mysterious experiment, they seek to discover the world’s secrets together.

Striving for talent, Senji Touya tries everything he can so he can find it. Kendou, dancing, swimming, basketball, soccer, chess,... anything he tries, he fails to exceed it. One day, his classmate, Haito, came to school for once in a long time. Senji refers her as someone who "has it" or someone who has talent. Later on, he found out that she isn't just someone who has talent, but someone who "took" the talent of herself in her past life. And, those who "took" the talent from their past lives, are also known as "Returners"...