But the boy knew that he had to protect his wizardly little sister from the DBI's investigative teams because his imouto is actually a top-secret magic mercenary from another world who is here to assassinate the president.
And then he woke up, glad to know that the nightmare was all a dream, that his life was still normal, and that nothing weird was going to get to him, and because of this, he has now gained a death wish for simply having obtained dark knowledge from said dream.
But just as he was about to confess his love to his little imouto, he accidentally tripped over a conveniently-placed banana peel and fell on her while pressing her robot-transformation boobies.
The hatch opened & a perky high school girl clad in a sailor uniform popped her head out, smiled, & put her hand on her cheek, looking at the resurrected boy.