The main comparison this game will receive is to
Dynasty Warriors [三國無双]. I understand where this is coming from, and the comparison is apt. However, the characters' movesets start out so incomplete and barren that it makes Dynasty Warriors look like
Devil May Cry [デビル メイ クライ].
Once the girls gain levels, their movesets expand, and become more in-line with expectations, but the problem with this is that it doesn't work out very well. Each main campaign mission forces one particular girl on you, and all but two of those start from level 1. Each girl does get her own side story of five missions, which will raise her level high enough to take on any main story mission, but they only unlock after completing optional objectives in the main story missions.
Trying to beat some of the later missions as a level 1 character fresh out of the box basically just puts you up against walls of HP. Your only option then is to grind earlier missions as each new girl, which is less than ideal. I should also mention that I played the entire game on easy, and I still felt like I was banging my head against a brick wall for later encounters as certain characters.
People complain about certain Dynasty Warriors games having clone characters, but that is immensely preferable to some of the movesets in this game. In particular, Kafuru's weapon is two dolphin-shaped squirt guns that, predictably, deal almost no damage. Every fight with her takes three times as long as it would with any other character. Even other weak characters like the pancake girl have powerful special moves that can clear a crowd, but Kafuru has nothing that can do any damage whatsoever. Naturally, of the three shrine maiden sisters, she is the one the game makes you play as the most.
This is even more frustrating when almost every mission seems to be two-to-five girls going to do the mission, but you get stuck with whatever girl the game chooses. It would have been much better if they'd just let you pick from the girls who are fighting on the same side in that mission, because even if they'd balanced everything well, people would still hate certain movesets, because that's how life works.
The biggest draw of this game is, of course, the boobs. There's no getting around it. As characters take more and more damage, their clothes get destroyed. This plays out in a small cutscene that happens immediately in the middle of the action. This also hurts the gameplay, because it breaks aerial combos, and allows the opponents chances to either retalliate, or change into their upgraded form, which restores their health completely.
If you're playing as a slightly leveled up character with a good moveset, this is a fun game. I enjoyed the side stories for a lot of the characters.
If you're stuck playing as a level 1 character with a horrible moveset, this is a frustrating game where it feels like you brought a rubber knife to a gunfight.
The plot is also horrible, but it doesn't really matter for this sort of game, I suppose.