His Childhood Best Friend is a Killer (under Editing/rewriting)

Misaki and Seito had been friends for so long, many years later they became teens and Seito is a young writer and Misaki is president of the art club, little did Saito know that his best friend was a killer, Let's find out how their story goes, maybe it will be a happy ending or ending up with despair. This is the story of His Childhood Best Friend is a killer

I don't own the cover, I was looking for an anime girl that looks like Misaki

{please note that this book is under Editing/rewriting, so I suggest going back to chapter 1 if you already started reading this horrible book}