Ichinomiya Kantarou, gifted with the ability to perceive demons, endured a childhood of isolation and torment due to this unique sight. Rather than shun them, he embraced these otherworldly beings, forging deep connections with them. The revelation of the enigmatic ogre-devouring Tengu, hailed as the mightiest among demons, ignited Kantarou's determination to seek out and befriend this unparalleled entity, whom he affectionately named Haruka. Thus commenced Kantarou's relentless quest to locate the legendary Tengu, a pursuit that eluded him as he sustained himself by weaving folklore tales and engaging in demon exorcisms. His journey took a pivotal turn when he stumbled upon a rumor pointing to a nearby shrine rumored to house the awe-inspiring ogre-eating Tengu.