Rumors always sound stupid until you are the one they whisper about. This game throws you into one of those sticky school legends, the “there is a satanic cult behind the gym” kind of bullshit, except you actually trip over the damn book they are using. Not a cute grimoire with sparkles, more like something that looks like it smells of old cum and candle smoke. You crack it open for a laugh, and the first thing it gives you is the power to make the class virgin blush so hard she almost creams herself in the middle of an “examination” scene where the teacher leans too close, her tits brushing your arm, and you realize the book is not just edgy goth decor. It lets you push people, twist their lust, nudge their fears, and at first you just use it for small shit: making your best friend text you late at night with “I had this weird dream, why were you watching me in the shower?” while you are literally watching him through some voyeur spell on your phone, zooming in like it is some cursed Pornhub live cam. The game plays like a mix of visual novel and sandbox, you wander around school halls, club rooms, that empty classroom behind the science lab where the “mystery club” girl hides her monster girl hentai doujins, and every choice you poke in the text gets a horny consequence ten minutes later. Sometimes it is just teasing, a milf teacher accidentally pressing her big ass on your desk while bending over the board, sometimes it turns into full on corruption, like you mark a shy futa class rep with a little symbol and next time you see her she is in the bathroom stall, stroking a throbbing cock that looks too heavy for her thin legs, biting her lip and mumbling your name.

The story pretends to be about this “evil power” and responsibility, but half the time I forgot the cult plot and just chased who I could break or save or both. You can go playful, using the book to make girls horny at the worst moments, like forcing a strict nurse to lactate during a routine health check, milk stains spreading on her white top while she clenches her thighs, then suddenly she is grabbing your hand and shoving it under her skirt, muttering how this is “for science.” Or you lean into full NTR stuff, using blackmail photos and the book’s little curse tricks to push a sweet romance into pure cheating. There is one brutal route where your “best friend” tries to confess to his crush under the cherry tree and you quietly tweak her feelings so she accepts, then later you drag her into a storage room and she is on her knees around your cock, choking and crying because she knows she is his, but the spell makes betrayal feel like a delicious punishment. The game loves mixing that hurt with the horny: a loyal girlfriend getting pounded by a big black cock you summoned from some “monster” page, your corrupted class rep in a gangbang bukkake scene with faceless students dripping on her glasses, the principal on her knees in the occult club room giving a sloppy oral exam as if it is normal curriculum. There is futa, femdom, crossdressing sissification stuff where the book flips your own body, giving you a fat futa dick for one route, soft tits in another, forcing you into a skirt while a female domination demon spanks you until you are hard just from the pain. One day you are fingering a shy monster girl by the pool during summer vacation, her tail curling around your wrist as she begs for creampie, the next you are watching a furry club president hump your enchanted sex toy in the empty gym. It is messy, horny, a bit mean, and the book never really feels safe; every time you use it to make someone moan louder in a titfuck or a footjob scene, there is that tiny line of text hinting that maybe the book is also rewriting you, turning a “regular student” into something closer to the cult freaks you laughed at in the first place.

You’re sitting there, phone in hand, thinking it’s just another cute little “help the girl get ready for her school exam” sim, right? Hair, makeup, outfit, some dialogue choices, a few horny CGs later. Easy. Except the “girl” the game wants to send to that exam is you. And you started this story with a dick, a very normal male student brain, and zero idea why the fuck you’re suddenly being measured on eyeliner technique and how well you can sway your hips in a tight skirt without flashing half the class.

The game opens quiet, almost boring, and that’s what hooked me. No instant blowjob tutorial, no “here’s your harem, pick a hole.” Just a nervous morning, a school setting that feels too normal, and weird little hints that something is off with your body. The first time you realize your reflection in the mirror doesn’t match the way you remember yourself, it hits like a small car crash. The dev takes their time with it, slow corruption of gender and morals at the same time. First it’s “just crossdressing for this one exam.” Then it’s “well, you need to practice walking in heels, let the teacher help your posture.” Then somehow you’re bent over the desk, feeling your ass slapped and graded like part of the curriculum, and the worst part is your in-game thoughts start to enjoy it. Those internal monologue lines when you’re getting groped in the hallway, and you catch yourself wondering which of the boys has the biggest cock, were dirtier than the actual CGs for me.

I liked how the game makes you complicit in your own downfall. You pick the lipstick shade that later gets smeared during a messy oral exam. You choose to act “a bit more submissive” to get a better score, and suddenly you’re on your knees between two classmates, throat used like a warm hole while the teacher pretends not to see. They pretend badly. There is some netorare shit going on, too, but sideways: your old male identity kind of feels like the one getting cuckolded as your new girly body gets filled, stretched, creampied. One run I had my “good girl” reputation used as an excuse to parade me in front of older staff, a humiliating little exhibition where they check if the “student” is ready. Gloved fingers spreading you open, comments about how tight you are and how a nice big black cock will fix that. Another run I resisted more and the corruption took longer, with more teasing, more “accidental” touches, more voyeur scenes in locker rooms and bathrooms, like the game was punishing me for not giving in fast enough by cranking up the sexual harassment.

It feels janky in spots. Some AI CGs look amazing from one angle and kind of cursed from another, like the face doesn’t fully match the body, or the hands are doing that weird too-many-fingers thing if you stare too long. I still stared. The summer vibe is weirdly relaxing though, all bright classrooms and sunlit corridors while behind the scenes you’re being turned into the school’s futa toy or the class’ shared virgin project, depending on choices. There is this one branching bit where you can agree to a “private tutoring” session with a strict female teacher and it starts as normal exam prep, then she makes you spread your legs on the chair, checks how wet you are “from stress,” and then uses you until you’re shaking, all while lecturing about responsibility. Female domination scenes like that felt personal, intimate in a fucked up way. Then later the same character can watch you get stuffed by multiple guys at once, barely saying anything, just writing notes like you’re a lab rat. It messed with my head in a good way.

The story is mostly kinetic in pacing but still manages to feel like a sandbox for your humiliation. One time I focused on being the perfect obedient girl and ended up pregnant from an exam “reward,” cum dripping out in a medical examination scene that treated your belly like a test result. Another time I pushed for more wild stuff and unlocked a futa transformation path, where you keep a cock while having this soft, thick ass and big boobs, so they test how many students can fit inside or around you at once. I still have the scene of being pushed up against the classroom window in my head, skirt hitched, some monster girl-looking classmate pounding me from behind while random NPCs walk outside, clueless. The game doesn’t rush those moments. It lets your thoughts spiral, your shame grow, your arousal betray you. It’s messy, inconsistent, a little ugly here and there, but the slow burn into full sissification and “everyone uses the exam girl” fantasy hits way harder because of that.