No comment
The idea of a "ninja spy" was intriguing for about 30 seconds, that's how badly the devs used it in this VN. If you want a VN with a spy theme that was much better, go play Riddle Joker (which came out first btw) which if infinitely superior. Out of the 4 girls only 2 have any connection to the main plot and one is only a peripheral one at best and your actions as a spy are laughable on par with Dudley Do-Right as opposed to the "morally grey" they were going for. So save your money and time.