A man confined to his home due to agoraphobia leads a secret life unknown to his roommates, who are oblivious to his condition despite his refusal to join them on outings.

When tensions around AI spark civil unrest, Akira is caught in the crossfire when he protects his girlfriend from an assassin. Hundreds of years later, he awakens from cryogenic sleep to an unfamiliar world and bonds with the android Yuugure.