Sinful life with the strongest system.

Fast Food nearing trash. The start was pretty retarded, MC is unlikable, you will like the villains more. Author pulled out some shitty plot about how the MC saved the world out of his ass so he could have a excuse to give karma points to him, even though there was no need for that at all.

The story is mediocre, grammar is bad but readable, literally the only reason you would read this novel is for the R-18. You might as well go watch porn instead, since this fanfic is just hentai with extra steps.