Even though Koki Nakagawa and his childhood friend Ayumi Fujisaki bicker like cats and dogs, one thing's for sure...he's head-over-heels in love with her. But when he finally starts to confess his feelings, his awkward-but-nice-enough classmate, Jindo-san, announces that she's Koki's girlfriend! She tells Koki that he can never tell Ayumi his true feelings...because if he does, the world will end in apocalyptic disaster? What's a guy to do?
Does Ayumi feel the same?! But Koki knows that if he confesses, it’s lights out of for the world. Jindo’s sexy traps really kick it up a notch! But if he gives in to temptation, it’ll be a bloodbath. And then there’s Tenshi’s plan to quickly approach Ayumi because she is after Ayumi’s powers. Koki then finds himself in a situation he can no longer flee from. He must choose between Ayumi, Jindo, or Tenshi in front of the entire school! “The time has come, Nakagawa!! Who will it be?!” Does he want the world, the girl, or heaven? The choice he makes will seal the fate of everyone present. The supremely extravagant, ultimate choice romcom finally reaches its climax!!