If someone got my save file, then they won't believe that I've played this game from noon until 10 PM. But despite that, this is a pretty good game. Not perfect, but pretty good. Since I almost strictly play NTR and corruption games, Fleeting Iris is basically right up my alley.
The game has many routes to choose from, and it gives enough freedom for the player to hop between them. Not to mention, the save user interface tells you which route is currently active. Also, the game gives you a warning if you stumble upon a no-where-but-going-forward route.
The drawings/graphics, BGM, map design, story, and dialogue are all top-notch. Unfortunately, I still encounter bugs and stuff. The game also doesn't have some kind of a 'review' that can be used by the players that have not played for a while to remind them about certain mechanics, but that's basically in the realm of nitpicking.
About free roam, I feel like the game doesn't let much freedom on that part. I mean, players will stumble upon free roam eventually, but it was so far in the game's progression that might as well not add it in the first place. To the game's credit, it does feel like it was built for a VN with RPG elements on it, like the player can move the main character and stuff, but is still a story-heavy game with routes like a VN. So I guess free roam is more like an additional spice for replayability. Well, that's just how I feel.
Overall, this is a pretty good game that deserves a 4-star rating from me. I will play it again so I can unlock all the scenes without using the cheat that the game provides, so my thoughts in the future might differ from what I have now. Until then, stay safe y'all.