Welp, if you follow Fume at all, you know they are big into corruption stuff of all kind. If you also follow Fume you know that making heads or tails of their corruptions at times, even when understanding Japanese, can be a clusterfuck of 'What?'.
...That is this game more or less. Lots of corruption, so much corruption it's kinda the core mechanic of the game on both playing fields. but at the end of the day somewhat a head scratcher of what -exactly- just happened beyond a lot of SEX occurred and we -think- everyone had a good time. So to start off you play as the aptly nameable 'Hero', who while is seeking to save the world from...Something ( more on this later ) with his three gal support crew, they get caught by what calls herself a Goddess who feels like you 4 'should not be defeated by any means possible', and she ensures of this in her own ways. So after a semi corrupting intro of this Legacy sexing up your team and letting you go, the game opens up into a very loose ended exploration game of sorts.
The game world itself is made to be rather open ended, so you'll quickly jump between foes you can OHKO, and stuff that can OHKO -you- as you run around looking for chests and key items/puzzle switches so you can keep advancing in areas. The big thing to note are the crystals that lead into different corruption based events with your team. Each one's chain tends to lead itself into a final payoff that can be anything from say a new attack, new equipment, or general boosting items. Given that each chain doesn't even take into account the previous one ether, it's kinda -expected- for you to just grind and preform these back to back.
Otherwise the game has 5 possible endings, each one depends on where you end up and 'find' your final boss more or less. I say this as you can end up stumbling onto a few of these without even realizing what it is till the last second! The story itself wavers as well between the odd spreading of these white mask that come off nearly parasitic like, towards the awakening of a grand dragon bound to rule over everything, and then a dark void almost gygas inspired that will devour everything if not stopped. I couldn't even say understanding Japanese would help you much in getting around as outside of a few things requiring keys to return with later, the rest of the game is just 'follow path, do puzzle switch', and it's pretty easy to navigate and get around at that once you unlock the different warp points.The game also offers a 'looping' option so you can keep replaying it on a single save ( as there doesn't seem to be a global save... ) to unlock different achievements and get a few extra boons, though if you really want everything just talk towards the Goddess and get taken towards the CHEAT room where you can unlock the entire H-Gallery, all items, and max out your level and stats.
Really after playing this for a bit, if you're a fan of Fume's work, there's some good stuff here, including with equipping the girls in your fav corruption set ups for your own taste. The battle status effects are fun as well, though I wish there was a better way to check the opponents status effects in turn as it can be hard to figure out if something's still effecting them or not, and on a few fights vs things where they has such high stats you can't even harm them without draining them, that can get vexing fast. Also for those who -really- don't care to play it, it comes with all of the high-res image files uncompressed out the gate so you can just oogle at all of that.