After receiving a cryptic warning from his brother, Tomo and the others come under attack from a mysterious woman and are forced into a trap set by Hiwako Torishima. The group are then saved by a powerful Asura Machina and Tomo makes a serious of shocking discovery's about his brother, Misao and the Asura Machina themselves.

Now back in the Second World Tomo and the others discover that they have 10 days until Tokiya can set his plan in motion. Tomo also discovers that he has inadvertently entered a contract with Takatsuki and that they now have a Daughter, Persephone. As if that wasn't enough Tomo is then appointed as the new President of the Third Student Council. Unfortunately, there is no time to deal with all of these new events as Tokiya has a found a way to accelerate his plan and Tomo must once again try to save the world.