I played V's route first (which is excellent) and Ronin's second. And I want to stop there because oh, Ronin's route.
He's INSANE, and he's well developed (which is rarely seen in characters with his characteristics). The dialogue, the character interactions, the voice acting, everything is spot on. And I want to make a special mention to whoever voiced Ronin because he gave me chills (in good and bad ways, which I think is exactly the point of his character, that he gives off a bad vibe, that he is attractive in a wrong way).
To add to this, the character customization is very complete, and the game interface is easy to understand. Congratulations on this work, it's refreshing to see such a good visual novel after so much.