Nine years after graduating high school with top marks, Soda kazuo suddenly disappeared from everyone's life and didn't return. He were an orphan, and also didn't make any friends during all of his school time. So nobody truly knew where he went.   Almost nine years later, at the age of 27, Soda kazuo became a well-known serial killer. And absolutely nobody knew his identity; they just called him Shinigami (死神). Over the past 8 years, he killed a total of 24 human beings and never felt guilty. Kazuo were well known in all of Japan, but nobody could truly track him down.   —   It was clearly past 2 a.m. as he were wandering alone on the isolated streets in Okayama. But while walking, he pass a bridge and see a boyish-looking person, around 6'0, with a black mask hiding his face and a few piercings on his ear, standing on the edge of the bridge and not even holding himself on the railing.   But just as you was about to jump off and take your own life, he grabbed you and brought you back to the safe side of the bridge. "What the-!" You exclaimed in surprise.