Mandatory Mentor is like someone mashed a strict study planner with a really horny pet trainer, then dropped the whole mess on a hot empty island and told you “good luck, don’t screw this up.” You’re stuck with Reina, this rich bratty brunette who clearly never opened a textbook in her life and absolutely hates that you suddenly have power over her schedule, her body, basically her whole week. The game calls you her tutor, but let’s be honest, by day two it feels a lot more like you’re breaking in a very spoiled pet who thinks she’s still the princess of Tokyo. She talks back, rolls her eyes, complains about every exercise, and somehow that just makes it better when you finally shut her up with a command, a collar, or a firm smack on her ass after she flunks a quiz she didn’t even try to pass.

The core loop is weirdly simple: teach her, test her, punish or “reward” her depending how hard you want to lean into the humiliation angle. Sometimes you’re actually drilling her on test questions, like some half-serious exam simulator where wrong answers equal more time on her knees. Other times you absolutely forget this girl has an exam and you’re just seeing how far you can push her obedience. There is something funny about it too, not just mean. She’ll come out with these salty little lines when you tell her to recite formulas while wearing nothing but a leash, and the game’s sense of humor keeps things from feeling grim. Or it tries. Then you strap a toy between her legs as a “focus tool” and tell her she can only cum if she solves problems fast enough, and suddenly the joke hits different. The spanking scenes really shine here: her reactions shift over the week from pure outrage to this embarrassed, shaky acceptance, and the sound design for those hits is way too satisfying for something that’s technically “study motivation.” Animated bits give those moments a lot of life; watching her squirm after a failed test with her reddened butt on display kind of erases whatever sympathy you had five minutes ago.

What I like is that you can lean more into teacher mode or just slide full tilt into trainer/domination mode without the game slapping your wrist. One run I actually tried to help her pass properly, keeping the kink as “discipline,” stopping before she broke, letting her keep some pride. Then next run I was basically using the exam excuse to turn her into a needy island pet, tracking how far I could drag her dignity down, locking her in humiliating routines between study blocks, making her say stupid little lines while you correct her answers. The game branches based on that, so you don’t just get a simple pass or fail screen; your attitude shapes what kind of ending you drag her to. Sometimes the joke about being stuck as a coconut collector lands almost like a punchline, sometimes it’s just you and your house-trained Reina on this island you kinda don’t want to leave. There are toys that show up that feel way too advanced for a deserted island, but whatever, porn logic is undefeated. My only real gripe, the one that annoyed me the whole time, is how she sometimes snaps back to her early-level brat personality in scenes where she should be totally broken in already, like the script forgot you smacked the arrogance out of her four days ago. It doesn’t kill the mood, just makes you want to grab her by the chin, remind her who her “mentor” really is, and start the lesson all over again.

This one starts with a tiny runaway mouse boy stumbling into this absurdly huge mansion full of smug cat girls, and the size difference hits you in the face right away. He’s basically pocket-sized compared to their big curves and long legs, and the game never lets you forget it. You’re not “the hero”, you’re the help. Literally. A servant. Cleaning their mess, carrying things too big for your hands, getting shoved around by fluffy tails and thighs that could snap you in half if they got bored. And they do get bored. A lot. The tone dances between cute and cruel in this weird way: one moment a cat girl is rubbing your head like you’re a pet, the next she’s sitting on you just to see how long you can breathe under her ass. It sounds stupid when I write it, but in the actual scenes it lands somewhere between erotic and “wow, I really need therapy”.

The kinetic novel style makes it feel like you’re being dragged through this long teasing session that never quite goes where a typical porn game would go. You’re always under someone’s thumb or paw or ass. There’s lesbian stuff right in front of your eyes, and you’re just there, small and pathetic, holding towels and pretending it’s fine. The girls are all different levels of mean and sweet. One plays the “big sister” role, petting you, warming you against her chest, then casually smothering you with those huge tits while she flirts with someone else. Another is a full-on sadist with a sense of humor, laughing while she pins you with her bare feet and asks if you like being her toy, but the writing gives her these quiet moments where she almost sounds lonely. It’s romance, but twisted. Not hearts and flowers. More like “I might love you, but I’ll still use you as a cushion while I read.”

The giantess angle sneaks up on you when the scale suddenly shifts in some scenes and you really feel how tiny the protagonist is. There is this one bathtub scene where you’re basically like a living bath accessory for a lazy cat girl spread out in warm water, her big ass half submerged, tail flicking, and she makes you scrub her while she casually talks about your future like you’re a piece of furniture she’s planning to keep. It’s hot and humiliating in the same breath. The humor keeps it from feeling too heavy, with little gags about you getting stuck between pillows that are not pillows, or almost drowning under some cat girl’s tits while she “forgets” about you. I kept wanting more agency, but at the same time, the lack of choices fits the whole fantasy: you’re small, they’re not, and the mansion belongs to them. You just exist in their world, a toy that occasionally talks back. And yeah, they tease the idea that even a tiny mouse boy can change things in this house, but most of the time you’re just trying not to get crushed under a horny cat girl who thinks “romance” means sitting on your face because it makes her laugh.

You get dropped into this messed up fantasy queendom where everything feels like some horny DnD campaign that went off the rails, but in a good way. They keep telling you you’re not the hero, your friend is the “chosen one”, but the game clearly enjoys putting you in the middle of all the drama anyway. The world looks like one of those overdecorated anime Pinterest boards come to life: shiny armor, magic light, ridiculous castles, and then this weird contrast of fallen angel girls acting all holy while their halos are basically hanging on by a string. One second you’re listening to politics, next second a hot older queen type is absolutely grilling you with her eyes like she’s checking meat at the market and already knows how she’s going to ride it. The teasing is constant, to the point it almost feels like the game is roasting you: you’re supposed to be “side character”, but every milf, monster girl and smug noble woman keeps using you as her personal stress toy. And yeah, I liked that way too much.

The power dynamic is funny in this one, because people talk to you like you’re disposable, then two scenes later some tall, perfectly-stacked sorceress has you pinned to a bed, calling you “boy” while she’s the one doing all the work. There’s one scene early on in a library room that completely sold me: your childhood friend, the “hero”, is having their big destiny talk with some angel chick, and the camera basically drifts away from them to focus on you getting cornered between two shelves by a horny monster girl with horns and a tail. She keeps pretending she just wants a “little taste of human mana”, but the way she slowly grinds on you, whispering in your ear, her claws barely scratching your chest, it’s so obvious she wants to drain you dry in the dirtiest way possible. When she finally sinks down on your cock, the sound and animation of that slow first push is so, so nasty in the best way. Wet, tight, drawn out, like the game is proud of making you wait. And then she starts riding you and talking shit about how weak you look while she milks you, like some kind of horny demon personal trainer. Honestly, I opened Spotify and put my own “Slow Pervert Energy” playlist on loop for that whole part, it synced too well.

What I liked is that the humor is not afraid to be dumb and horny at the same time. People make jokes about prophecy, war and angel corruption, then suddenly you’re in a room with a milf knight captain who says she needs to “inspect your stamina” and it hard-cuts to her sitting on your lap, plate armor half off, boobs basically spilling, bouncing on your dick like it’s just another daily duty. The sex itself leans a lot into female control: they push you down, sit on your face, guide your hips, ride till your legs shake. Even when you’re doing vaginal from below, it feels like they are the ones deciding how fast and how deep, and the game really loves that angle where she looks down at you with that “aww, you already came?” smirk. The isekai stuff is kinda chaotic, the plot talks about corrupted angels and tensions between regions, but then right in the middle of some serious conversation, a monster girl will casually grab your crotch under the table and dare you to stay quiet. There’s clipping here and there, some awkward camera stuff, and one character’s hair that keeps glitching through her tits in a way that drove me nuts for no reason. But I kept going anyway, because every time I thought “ok, enough”, another scene throws me into some new power-play situation where a gorgeous woman takes charge and uses my poor MC like a toy. It feels wrong, stupid, hot, and somehow relaxed at the same time, like a late-night playlist that keeps switching from bangers to slow, filthy tracks without warning.