I have to say, the concept of the author is truly amazing! I really like how the story progresses by killing someone that the MC (Akio). Love that part! Will surely read more of your novel, mate!I do have some few points to point out. The story you wrote mostly has "telling" and few "Showing". It would be awesome if you could describe Aiko's facial expression, how his heart skipped a beat after seeing his parents dead, or the pain surging from his skin. These things helps us, reader, to imagine the scene more than saying they were covered in blood.Although the informal introduction was a bit funny, in formal writing (writing a book), that technique might appear odd. I don't know if this part is a matter of perspective, but I think sticking to formalities such as telling the character from someone else (another character) or an identification card (a subtle introduction) would be preferred than saying it on the spot. Lastly, there are some dialogue tags such as "An old man was seen talking to me." might appear correct, but in a dialogue tag, it sounds confusing. A simple "An old man walked up and said." would do its job since "said" is an invisible dialogue tag. There are few dialogues such as "Can you not." Spoken by the main character might appear force. Although that might appear witty, I think something like "Are you mocking me!" might show anger and hatred towards the creature imitating his parents before they died would bring more emotions. Kudos for the author!