This is so bad.
1/10 from me.
I'm kind of a sucker for revenge manga, so I don't dislike it at all. I wish people would at least explain what they disliked instead of just saying "it sucks".
I definitely wouldn't rate it a 10, and it's more of a revenge power fantasy than a crime drama. My main complaint would be that a few of the villains, like Sakaki Shuuma, are so brazenly evil that there's no way they'd be able to get away scot free. They also have no motivation or personality outside of "being evil", so they're all incredibly shallow and serve no purpose other than as targets for the MC. That being said, it's still satisfying when they get taken down.