The new professor walks in and I'm already picking apart her blouse buttons with my eyes. Redhead, glasses, that whole thing. You play some student who's failing, and she's got this whole "I can help you after class" energy that's about as subtle as a brick through a window. The setup is quick, real quick, like the title says. You don't need to sit through twenty minutes of world building. It's just you, her, an empty classroom, and the lingering smell of chalk dust.
The dialogue branches are simple but they know what they're doing. One path has you leaning over her desk while she grades papers, and the tension there is stupid good for how little animation there actually is. The CGs hit when they need to. There's a scene with her hair coming loose from that tight bun that I rewound like three times. The whole thing maybe takes fifteen minutes if you're clicking through, but the choices actually matter for which ending you get, and some of them are not exactly what you'd expect from a "quickie" game. I won't spoil it but one route made me actually laugh out loud.
Complaints? The sound design is pretty much nonexistent. Like, a couple of button clicks and a stock "moan" that sounds like it was recorded through a sock. And the redhead's personality flips from strict to needy in like two lines, which is fine for a porn plot but feels rushed even by these standards. Still, for a browser based visual novel with no downloads, it does the job. Not every game needs to be a fifty hour epic. Sometimes you just want a professor who gives extra credit.