Seeing Rei Tachibana without her uniform is weird enough, but then the glasses stay on. Always. Something about that detail got me. They didn't animate it sliding off or fogging up or anything. Just these big nerdy frames locked on her face while everything else... expands. And I mean really expands. Those tits look like someone opened a valve and just left it running. Not a complaint exactly but it's almost comical until you click to the cowgirl position and suddenly it works. The way the swimsuit variant stretches.

Flying Tree Frog's game here is basically a stripped down F-series thing where you pick outfits, positions, and then poke at her with either the dildo or the on-screen cock. The bikini option is the most broken. If you switch from the school uniform to bikini mid-scene the boobs reset size for a frame then inflate back. Nobody bothered to fix that obviously. And the dildo just floats sometimes, not even attached to a hand. Whoever programmed this was horny and in a hurry.

The sound though. Some weird wet loop that doesn't match the speed, and her voice clips are like three words on repeat. "Yamete" then moan then nothing. I ended up muting it and just cycling outfits while she was in doggy. You can't even see her face proper in that position anyway so why keep the glasses model on? The whole thing is jank but I kept going back to the schoolgirl outfit with the jacket open. Something about Rei specifically, not some generic hentai girl but the actual Pani Poni Dash character, getting defiled like a fucktoy. The nerdy tachibana girl who was always screeching about something in the anime now just taking it. There's no game here really, just a compliance sim with boob expansion bugs. Wish there was more outfits honestly. A Mrs. mode or something. But they made what they made and the big boobs toggle works I guess.

You ever notice how visual novels about college are always weirdly pristine? Like everyone's dorm is spotless and the lab equipment looks like it was unboxed five minutes ago. Having a HARD Time doesn't give a shit about that. The CGs have this rough, almost sketchy quality to them, like storyboards that got colored in by someone who was more interested in the money shots than the backgrounds. And honestly? It works for what this is.

The setup is standard enough. Chemistry major, best friend since diapers, Wentford University. Then a lab experiment goes sideways and suddenly your character is dealing with changes. Physical changes. The kind that make your roommate do a double take when you walk out of the shower. The game doesn't waste time pretending this is high art. Within the first few scenes after the accident, you're getting hentai CGs that focus on the transformation with an almost clinical fascination. There's this one shot where the character is examining themselves in a mirror, and the expression work is actually pretty decent. Confusion mixed with something else. Something that makes you scroll back up for another look.

The writing is what you'd expect from a game that knows exactly why you're clicking through it. Dialogue bounces between awkward college banter and the kind of charged silence that happens when two people realize the rules just changed. The experiment angle gives everything this undercurrent of body horror that somehow makes the explicit scenes hit different. Not scary exactly, but there's this tension. Like watching someone test boundaries they didn't know they had. The best friend character has this moment where they catch the protagonist mid change, and the CG is framed so you can't quite see everything, but the implication is doing more work than any fully explicit shot could. Then the next scene just goes full send with a closeup that made me minimize the window out of reflex. Old habits from living with thin walls.

The game's got this weird thing where the text sometimes refers to Wentford as "Wentworth" and I can't tell if it's a typo or intentional. Doesn't matter really. You're not here for proofreading. The lab sequences are barely interactive, just enough to remind you this is technically a game and not a slideshow with extra steps. But when those CGs hit, especially the ones later in the transformation arc, there's a rawness that most polished hentai games sand away. It's messy and unapologetic and honestly kind of refreshing if you're tired of the same airbrushed look everyone else uses. Just don't expect it to hold your hand through the weird parts. It won't.