Oni Gal-kun no Hara no Naka

Ritsu Kamishiro, a diligent high school student, devotes his days to the restoration of an abandoned kendo dojo. However, he harbors a deep-seated insecurity about his height. One fateful day, a peculiarly attired man with flowing locks materializes before Ritsu, proclaiming himself as a demon. Startled, Ritsu learns that this enigmatic figure...