I actually had low expectations of this thinking it would be an eroge game... It's a bit suggestive but it's actually a legit game. However, it has a lot of fluff and meaningless shit in it, a rather annoying UI at times, and as you might expect, a very flimsy flim-flam of a story.

However, the shooting in this game is actually fantastic. The guns are great, and shooting at zombies is fun. The maps are also really good and feature a variety of environments for you to procedurally clear, including various kinds of 'ambushes' and enemy spawning in different directions around you.

It features something of a dating sim side that allows you to get various upgrades for you, and your squad of girls. You can level up your party by doing these things. Just how much of an improvement you get i'm not sure. The various base upgrade also i think, dont do anything?

I'm tempted to give this four stars for being creative, being fun, but due to some of these fake or partially fledged elements, I won't, it's still better than it looks and seems that it might be at first appearance, but it's a fairly short game with a handful of single-player missions, your success with determines largely what weapons you can find and have access to (some of them are quite bad and easily outmatched by others). It also lacks a multiplayer mode. Still, worth a look at if you enjoy L4D type games