Gameplay: 3.5/5
Really great, probably the best amateur H tower defense game I've played. What prevents it from a higher score is that the balance/challenge of the game disappears after the first couple of areas. You gain access to equips and skills that are far too unbalanced rather quickly. It's also way too easy to overlevel your girls and stomp everything in the next area just because you tried to complete all the quests before moving on. Although some of the challenge returns in the final area, it never goes back to the feeling the game had at the start. Strategy goes out the window and it just becomes a matter of dropping your OP units near the exit and watching them mop the floor with all mobs.
The dev really should have toned down the range enhancements, the gem equips, and some of the skills. By end game most your characters can snipe enemies from super far away, completely fucking over any level design meant to test your squad with placement difficulty. You also shouldn't be able to stack 2 gems on a girl, they're too powerful. I think in a sequel there should be level caps for each area as well to prevent your squad from becoming too powerful too quickly.
There are also some little things, like it would have been nice to be able to see the stats/attack range of the girls you place on the field when you click on them. Especially early on, it's difficult to tell what units are in range of the healer you want to place.
If the entire game was balanced as well as it was in the first two areas, I probably would have given this a 4.5 at least.
Art: 3.5/5
It was okay, it had some inconsistencies and anatomy issues, but it was passable. The only thing that might be distracting in the scenes for most people is when the MC's body appears. It seems the artist has less experience drawing men. Even as an ugly bastard, he seems like he was drawn at a lower quality than the girls and that contrast hurt some scenes.
H scenes: 4/5
There's a decent enough variety in positions, character roster, and amount of scenes for each main girl, along with the occasional dialogue changes for higher lewdness in some scenes. There are some scenes where the girls have sex with other men, but 2/3 of them are easily avoidable (Don't buy the memories from the shop, or if you do, don't enter the final cutscene for Luna and Hannah.) Meriri's scene will happen automatically once when you beat the succubus mine map, so watch out for that if you want to avoid it. I think the map might be optional.
The H scenes are also voiced pretty well btw. The dialogue isn't anything too crazy unique or interesting, but that's mostly on the story not being all that complex.
Story: 2.5/5
Difficult to rate this because of MTL, but it didn't seem to be anything too special or bad. What I could gather is it does have some humor to it that would probably show up much better in a full translation.
Overall: 3.5/5ish stars
I'd say it's worth playing even with the unbalanced midgame and you shouldn't be too disappointed if you aren't expecting too much from it. Nothing is really below average here. Just be aware of the kinks mentioned in the title, as that's probably the only thing that might turn you off from this if you're interested in the game for being a tower defense. Copious amounts of rape and ugly bastard, lol.