The math problem was 7+3 and I typed 10 but my finger slipped and hit 1 then 0 separately which the game read as a timeout somehow. Ten seconds is nothing when you're trying to do arithmetic and also there's a woman with breasts that defy physics slowly losing her clothes on the other half of the screen. The game doesn't care about your excuses.
This is one of those solve the puzzle get the nud games that's been floating around forever, but specifically it's math. Basic addition, subtraction, sometimes multiplication if the RNG hates you. Every right answer removes a piece of clothing from the anime lady on screen. Every wrong answer or timeout and... nothing happens? Actually I think the timer just resets and you try again. There's no punishment mechanic which feels like a missed opportunity honestly. Like what if wrong answers added clothes back? That would at least create some stakes. But no, it's just this frictionless slide toward nudity with occasional arithmetic errors.
The art is that specific kind of hentai where proportions exist only in theory. Massive tits, tiny waist, the usual. Not my thing usually but here I am typing 24 divided by 3 while someone's bra is halfway off. The game knows exactly what it is and doesn't pretend otherwise. No story, no characters with names, just math problems and a picture that gets progressively more nude. I wish there were different difficulty settings because the math is so simple it becomes muscle memory after like five problems and then you're just waiting for the timer to tick down so you can see the next state of undress. Maybe that's the point? The anticipation? I don't know. The timer stress is real though, my heart rate actually went up when I got 15+27 and blanked for three seconds. Three seconds is an eternity when a cartoon woman's panties are on the line.