I just finished the game, and, waow. Am speechless. Let's break it down.
Story & Characters. This is probably the best dialogue and characters I've ever seen in an RPGM game. The story's preamble is very simple and only shows you how literally anything can twist into unpredictable and thrilling turn of events, given enough talent on scriptwriter's side. Hats off, very good job.
Gameplay. You control the young duchess while she is trying to kill some time waiting for her fiancé to arrive, and... well, it's your journey to take. You are free to explore the world has been given to you and quite often you will find yourself getting into different kind of situations. There isn't really much gameplay beside going here and there and talking to people, so game resembles more an adventure-like visual novel, but that feeling of fully controlling your character and being able to make decisions as well as roam around looking for trouble is what I love the most in RPGs. You aren't being guided through a narrow corridor but rather intended to go on a whatever journey you're able to find.
Adult content. The game isn't porn. If you came here to bust a quick nut, move along. Though the theme and atmosphere of eroticism is somewhat prevalent, accent is made more on relationship development rather than fucking silly as you already have in many other games anyway. Whatever you find in this game, is good. But whatever just isn't in the game - it isn't in the game.
Overall, such a fine piece of art is rightfully sitting on its 5 stars which shows exactly how satisfied are the people who likes good story. Only the CG art is somewhat meh but man I wish I could give any fucks about that one.