Randomisers give you novelty. A generator with inputs gives you intent.
Most tools that call themselves an AI girlfriend generator are a dice roll with a nice frame around it. Press the button, get a stranger, press again, get a different stranger. There is nothing to steer.
Here the panel takes your inputs first. Appearance and setting shape the portrait; the temperament values shape how she opens a conversation, how fast she warms up, whether she teases you or waits for you to go first.
Then it generates once, coherently. Her voice, her face and her manner come out of the same settings, which is why she reads as a person rather than a photo with a chat window attached.