Not gonna lie, i love the sandbox aspect of the game and i wish that instead of being able to romance only a specific handful of special characters, you could actually establish a romance with one of the generated characters the game has. Not only that, but being able to do more fun things with them instead of only focusing on a handful of special characters.
It's awesome when the dev writes amazingly well and is able to create a pretty engaging sandbox experience, giving the player freedom to walk around and control what kind of experiences they want to encounter in the game world. It breaks this immersion however, when you are unable to have such engaging experiences with the NPC's that are generated by the game itself, because these NPC's are not integrated with the relationship system the game has going.
For example, with Rahi you can actually have a romance and even marry her. That's pretty awesome and well written, but for someone that's looking to do the same with a male character (of any build, could be masculine or feminine male), they're not gonna be able to experience the same interaction, because they are not a special character that's gonna get a route written later on. Really hurts, because i wish i could do the same things you do in-game with Rahi with one of the generated male characters as well.