The requirements listed in the office menu for making a model a concubine are wrong (they still say relationship 7 and top model, when it's actually just relationship 13).
Also, it's really dissatisfying to actually make a model a concubine. You lose access to the model's description and personality and all her photos except the one portrait shot...feels like a big step backwards in intimacy when it should be exactly the opposite. That makes the entire "girls" deception feel really hollow.
There's also a lot of information that's just in the wrong place. Like, in order to see which models need contracts in order to advance, I have to view each model's page individually, but I can't do that from the page where the contracts are assigned...I have to go through each one and make notes before trying to assign the contract. What a pain in the ass. Same thing for the beauty competition...you're told who the judges are, and you can go see what their requirements are, but then on the page where you actually pick the models you don't have any of that information.