Basically a Pacman with monster girls. You collect rings to charge up your sword which you can then use to kill enemies spawning in never-ending waves until you collect all rings on the level. That's pretty much it. Some levels have a gimmick or two to keep things fresh, like the desert level which has moving walls, but the core gameplay never strays away from that.
I really don't like the progression system, where h-scenes are on defeat only, until you complete the level where they can appear in the gallery section in the hub. Selecting a level also requires you to complete it beforehand, so if you struggle against a particular level (like I did with the one with the dissapearing floor), you have to do the previous level again, even though you've already done it.
And completing a level is fairly long for what little gameplay it offers, especially considering you have to charge your sword very slowly to attack enemies for like 5 seconds at best, meaning they will keep piling on you and make the game artificially difficult. The best thing to do is just ignore them, really.
The artstyle and the music themes are nice. The sex scenes are short and bland. Nothing much to say. I get that it's a game focused on femdom, so you can't have the MC raping everyone on sight, but I wish the sex was more integrated into the gameplay. As it is, it's just an average Pacman clone with brief sex scenes as a reward.