"Is it a sin to kill a sinner?"
Two decades have passed since Orira had fled her former home, seeking solace in the city of Leshus. Now, alongside her step-brother Julian, she serves as a detective. Their relentless pursuit of Mono Enigma, a renowned serial killer, proves exhausting as he is always one step ahead of them. But the closer she gets, the more she realises that the answers lie closer to home than she ever imagined.
Behind all of Mono Enigma's killings lies a reason-a deeply buried truth that is complex to uncover yet profoundly simple to grasp.
Does he murder people to satisfy his bloodlust or does he have a connection to a case that was never solved?