Spiral Alive

Chapter 2
Chapter 1
Chapter 3
Chapter 1
Chapter 3
This is a spin off story that occurs some years before Spiral. The main character is Imari, who is in love with the kid who wants to be a detective, and that he quits school running after Kiyotaka, and it seems he's dating a murderer without knowing it...? But how is it all connected to the blade children? 
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