Tamachen!!

Though possessing a monstrous appearance and strength that scares those around him, Onigawara Nozomi is nominated for the cleaning committee by the charming and diligent student Komachi Himeno. Nevertheless, when they make their way home, Nozomi begins to pursue Himeno, causing her to flee in a panic. This ultimately results in an unfortunate accident that sends them both tumbling down the stairs, but upon awakening, they find that their bodies have inexplicably switched.