Mouse Trap

Denki:
Denki Kaminari finds himself in a relationship he isn't sure how to get out of until he meets the mysterious Hitoshi Shinsou, who suddenly replaces Mineta on a whim. As they get closer, does Kaminari find his way out of this relationship, or is he stuck with this boy before he can get to Shinsou?

Shinsou:
Hitoshi Shinsou, a simple class 1-C student, is asked to perform a series of exams that land him suddenly in the hero course, replacing one student named Mineta. An annoying blonde from his class, Denki Kaminari, won't leave him alone. It isn't until later that he understands why. Can Shinsou save Denki from the impending doom he finds out about or will he lose Denki before he can save him? Will Shinsou have to pick between two people during said impending doom? And will his choice cost him something he can't imagine?