Alight then, I've read over the comments on this. I knew of the previous game the circle did on, but never really played it myself. I did not know they were working on a project for over 2 years. Then checking some new NTR releases at DL Site a week ago, I stumbled upon this game. It appears that the game is unfinished. I played a pirated download for an hour, and did one quest (The first heart one, so the one with the old man at the hospital). Based from what I've read here, you unlock more H scenes as you progress the story. I find the concept interesting.
Concept aside, as sated before, the game looks very much unfinished, based from what I've read. I checked the SAVE posted a dozen pages ago here, and saw quite alot of scenes, with differences whether or not Philia is in a relationship with Hans (So there's the NTR). But even on that SAVE, there seemed to be good amount of scenes yet to be put into the game. That, and taking into account the build of the game is 0.90.3 as of this post, we've got a long way to go at hitting 1.0.0. We're talking 3-10 updates, depending on their size. One good thing is that for how unfinished it may currently be at, the reviews are OK, and the sales also alright (Since it's 20~ bucks, that's quite a bit of revenue for 2.6k+ sales for Dl Site alone). Thus, the creator may be more motivated to continue with development of the game, even hasten it, possibly.
And so taking that into consideration, I'll just patiently wait for the game to get further updated, to version 1.0.0 (Or very close to, depending what the creator says at that point in time). I take this process may take a couple of months, all the way up to about a year (Don't see it taking more than 10-12 months, realistically). In any case, I wouldn't have been waiting for development on this game as long as some people would have already, anyway. I may even do my bit and purchase a copy from DL Site (Might even get lucky and it gets a nice 10-40% discount). Anyway, here's hoping to some good stuff happening.