Split Demonic Afterimage

"I" Masaki Oyama is an ordinary middle school history teacher. In the past, I have always been cheerful, sunny, and intellectual. However, since last May, a series of bizarre deaths have been happening around me. A mysterious horror video disc - the cracked demon afterimage - accidentally entered my world. I keep discovering that everything around me is getting weirder and weirder... Am I crazy? Or is there a hidden devil manipulating all this behind the scenes? When all the truth came to light, I had already embarked on a path of no return leading to destruction. I want to tell everyone everything I have experienced, for a special purpose... PS: This novel is set in contemporary Japan. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.