Almost direct Vampire Survivors clone, with shinier graphics. Game mechanics is almost exactly the same. The only difference is 'aimed' attacks with some weapons and superpowers (in VS those were directly in front of the player).
Graphics is 3D but without transparent effects like in Soulstone Survivors. Also, the game has crashed on me once.
The difficulty jump at 20:00 is way too steep. If you're not ready by that time, you're facerolled.
The content is lacking. Too few maps, too few heroes.
The critical part -- no H discovered inside. Heroines are getting undressed as they take damage, but that's it. Yes, there is supposed to be several scenes at stage completion, but I didn't play long enough to grind for best off-field upgrades to take more than around 25 minutes. Besides, these are obviously not part of the gameplay.
&tl;dr decent game (as any direct VS clone would be), but I can't consider it an H-game. And we already have VS as VS direct clone and Soulstone and other variations as branches of that tree. This game has potential, but it has to be tapped to do any good.