In 2084, a young woman from the Earth resistance named Milly uses a time machine to travel back to October 2002, aiming to prevent the alien invasion and subsequent war that will destroy humanity. She is rescued from the Yakuza by a hit-man named Miyamoto and convinces him to help her alter the course of events.

Returner
A legendary outlaw is paired with a enigmatic woman from the future to thwart an impending extraterrestrial menace that imperils the fate of humanity.