I can only say that the MC is absolute trash. Hope the yakuza can cripple him so that the sister can become the real MC, either way this is not even worth starting.

Overall I would not say that the story is good, but I also would not say that it is bad. I personally enjoy the development so far and my only real complaints are that there are not enough chapters as well as there being repeats in chapters. Around 5 chapters were repeats starting from different spots using different chapter names indicating that this was most likely intentional. Hopefully repeats will not continue happening.

I like the idea of becoming a monster based on what you eat. It is the first time I have seen this concept in a novel at least and should have had some good potential. Unfortunately the novel can be classified as grade school level at best with no future. The grammar is terrible and the world has no logical development at all. The best way to describe it would be a world filled with emotionless, script driven events that can't even be considered to make sense. This is the kind of novel that should never make it past the 40 chapter mark. At the very least if for what ever reason it does make it past 40 chapters, don't pay to read it... It only encourages more work of this level being published while expecting to earn profit.