Short but hot.
I always appreciate a game that doesn't need me to play like a toddler bashing the keyboard to get the scenes, nor just blindly attack to victory. Unless you grind like crazy, the MC will get fucked eventually even if you play well simply because she gets worn down. And if you don't play well, you're going to lose, hard.
A notable point this game actively punishes you for losing too much, giving you negative sexual passives. You might skip turns randomly against enemies MC has been fucked too much by, or she might spontaneously gain a lust effect, etc. It's actually a very awful idea that breaks all the rules of game-making, but for a H-game, it's a pretty novel way to really hammer in the idea that the MC has been corrupted, rather than just from H-scenes.
ADDENDUM: Fortunately, the game never actually becomes unwinnable, as the passives only seem to activate on enemies that can rape you. It incentivizes the increasingly weakened MC to move smartly and tactically to avoid enemies, instead of just blasting through them. Levelling/Getting all of MC's skills is also pretty easy, as all enemies are EXP bombs if you do manage to kill them. As long as you can get to the bottom of the dungeon, you are still capable of clearing the game.
Unfortunately, the large effect corruption has in battles is cancelled out by the nonexistent effect corruption has on the story/ending, a complete reverse of other H-games. The townspeople may know Marle is a huge nympho in events, but the actual town itself never undergoes any important change. There is only one ending.
The base combat system is average (no elemental RPS, you only have a small repertoire of spells), but it gets slightly spiced by how MP is hard to come by yet also very crucial, so you need to decide if you can afford to ram through the horde you see, or patiently weave through them.
The lack of an unlock-all-CG button is a big minus, though, especially when coupled with the idea that you can't stack too many negative passives yet some of those are necessary to see extra scenes. There might be an unlock-all on the second playthrough?
In the end, I enjoyed it, but looking at it objectively, it has some flaws that make it an average romp instead of a must-play.