The first thing that hits you is how deliberately rough the edges are. Not in a broken way, more like someone scanned their old sketchbook and said "yeah, that'll do." The CG hentai style has this unpolished charm, lines a bit too thick in places, coloring that sometimes spills outside. It works for the story though. Clover, the university student you're supposedly looking after, has these big innocent eyes that feel almost traced from a different art style entirely. Then Cory shows up and everything tilts sideways.
Cory is the sister, the one who needs "direction" as the setup puts it. And god, she's insufferable in exactly the right way. There's a scene early on where she barges into the living room, still wearing what I assume is last night's outfit, and the dialogue tree gives you options that range from "mildly disapproving father figure" to "let's address this attitude problem directly." The old and young dynamic here isn't subtle. You're the older man, the best friend of their actual father who's apparently checked out of parenting entirely. The power imbalance is the whole point. I picked a dialogue option that was harsher than I expected and the sprite changed, her expression flickering from defiant to something more uncertain. The accessibility menu (hit 'a' if you need it, font override actually works decently) popped up by accident once and I nearly threw my drink.
What's weird is how the visual novel format makes you complicit in ways a regular animation wouldn't. You click to advance. You choose. The student tag applies to Clover but Cory's the one who feels like she's failing every class including basic human decency. There's a moment where the father gets mentioned and both sisters react, and for a split second the writing almost tries to be thoughtful about family dysfunction before remembering what kind of game this is. The hotkeys are there, 'h' hides the text if you just want to stare at the CGs, 's' takes screenshots. I took three without meaning to. The whole thing feels like it was made by someone who really wanted to draw specific expressions and built a story around justifying them. Not complaining. Just observing.