Rentarô Aijô decides to date all of his soulmates after Hakari Hanazono and Karane Inda confess to him at the same time God of Love tells him that they will die if any of his soulmates fails to get into a relationship with him.

Follows Rouge, an android girl, who is on a mission on Mars with her partner Naomi. The mission is to murder Immortal Nine, nine artificial humans who are hostile to the government.