Right, so the setup is classic "won a trip" bait, and you just know the corporation running it is skeevy before the first dialogue box even finishes. You pick between two protagonists, which is a nice touch, lets you see the corruption from different angles. The mom character, Ashley, she's got that milf-next-door thing going on, big tits practically spilling out of her vacation dress, and the game wastes zero time getting handsy. There's a voyeurism angle early on where you're peeping through a door crack, watching her unpack, and the 3DCG models, while not winning any awards, do the job when the clothes start coming off. The animations are a bit stiff though, like a robot trying to do a striptease.
The corruption is where it gets interesting, or it should be. One minute you're a normal son, next you're "accidentally" groping her in the resort pool, and her resistance just sort of melts. The handjob scene in the sauna is actually hot, the steam effects hiding just enough to make you lean in, but then the dialogue goes full porno script and it pulls you right out. I found myself skipping through some of the text, which is a sin for a visual novel. The multiple protagonist thing means you get to see the other guy's path, and his involves more direct vaginal sex and oral, but his storyline feels like a speedrun of every hentai trope. There's a scene with a resort masseuse that's pure "step-fantasy" cringe, and I couldn't tell if it was self-aware or just lazy writing.
What sticks with me is this one moment in the hotel room, you're watching her sleep, and the game gives you a prompt. Just a simple one. The cursor blinks. No dramatic music, no big tell. That quiet, creepy tension is more effective than all the loud moaning later. The sinister corporation plot is there, I guess, something about experiments, but it's mostly an excuse for the incest train to leave the station. The big ass shots are plentiful if that's your thing, and the game knows exactly what it's selling. Dare to play it alone, or invite company? Just make sure that company is as broken as this vacation is.