Average Tower Defense. It's cute, and does what it does okay. It might be worth your time to just play through it, but currently, very unbalanced.
Gameplay, 2/5: Unbalanced, Very Much So.
As another reviewer said, ranged is OP. The DPS is insane. Melee? They do not even hold the enemies back for the most part, and when they do, it's ONE enemy. Low damage, low crowd control, melee is useless.
Another thing, heroines are pretty damn strong, especially Yasako, who's meteor does everything; crowd control, DPS, sustained damage.
Also, there's no reason to even switch heroines. Using one levels them up, and so far, there's no, "weak against arrows" or "weak against magic" type deals.
Also, I found that the magic tower is the best all-rounder. Has better damage, and doesn't seem to miss like the cannon does. The arrow tower seems to do less DPS but I didn't test it too much.
Overall, it's very unbalanced. There needs to be reason to level up heroines, but with that, an easier way to level them up, say, use multiple heroines, or something. Enemies with certain strengths and weaknesses, etc.
Art, 4/5: Cute.
Not much to say, I like the chibi art, I like the animations, I like the character portraits and stuff. You see what you get, really. You don't like anime, then, well... Yeah, not for you.
Audio, 3/5: Is Alright.
Moans here, sound effects there, some it sounds kind of off. Moving the heroines, they have soundbytes, but they are shared between each. From what I've noticed, there's two variations, melee sound bytes and ranged sound bytes. Gets a bit repetitive and disappointing to hear different heroines with the same voices.
Music is alright, might be stock, but it's good stock music if it is. If not, again, it's alright. Pretty nice for what it is to be honest.
Story, 3/5: Average.
Plot: you're guy who works a 9-5 job, beats meat and plays games. Starting off... Very strong (this is sarcasm, I've already seen a few games with this kind of intro already). The heroines are part of a nation and they're losing to the chaos go- I mean, another nation who wants to subjugate their country because the enemy nation has had a tough time? Like it's Russia or something trying to raid Idaho and their potato farms? And so our gamer introduces themselves as a master tactician and starts leading our girls to victory, I guess.
It's a simple plot, VERY average for a H-Game. Also, you don't progress H-Scenes based on heroine level (which would also be a good reason to level up multiple heroines, but might be too grindy). I don't know how they would re-work it to make it intriguing, but... For now, it's alright.
Overall, 3/5: Very... Average.
I saw the first few lines of text, already knew where it was going. Played with the girl I thought was hottest, was already clearing Hard difficulty. It's just... Not the best well balanced game. Cute art, and could be fun if it was a little better balanced. I don't mind the "easy" (or first play through of a level) being that easy, but please balance melee and ranged a bit more.