The Seven Deadly Sins, the seven evils originating from the human heart (well, it's actually just my temporary imagination)
The main theme is thriller, and the relevant knowledge is read like crazy, so the practicality is only based on the theory.
I don't have enough brain power yet I force myself to write thriller and mystery books,,,
There is no cp, it is ambiguous (of course I will give out some sweets in the extra chapter)