Good premise

I quite enjoyed reading this but I feel like the ending undermined the message the story was trying to convey. I thought the overall theme was “we are not defined by our parents” or “we are our own people” or something. I think by ultimately making it so the dad wasn’t the killer kinda just destroyed that entire message by kinda saying “of course Eiji isn’t a bad guy cuz his dad wasn’t actually the killer”. I would have much preferred if the father still turned out to be the murderer but it was a good read nonetheless.