Interesting story, I'm liking it so far. You've got some good renders and character design. Good animations and poses during sex scenes.
I enjoyed the MC's indifference to Seraphina's whinging.
A couple of gripes:
Stop making me choose who to spend time with, it reduces the amount of content for the player and makes us feel like we are going to be locked out of a path, which shouldn't happen in a harem game in my opinion and I for one am never going to play a game twice just to see a couple of alternate scenes. Honestly all it's done is almost cut Risu's content out of the game because Lena is a more attractive and interesting character (Though I could've done without the shadow clone double team). Now it seems like Junko is going to be part of the options too which means we're missing out on content with two characters, you're kind of short changing yourself, the updates could have a longer play time if you did limit the content people get to see.
(I'm suddenly seeing that this no longer has the harem tag, nor is it the genre tab. So I guess I'm letting this point go. This realization does kind of suck much of the motivation I had for playing this game as none of the characters introduced seem interesting enough for me to want to do single path playthrough, but that's personal preference I guess).
Oh yeah, I was a bit miffed that you gave us a choice to either kill or spare Nania only for us to find out that she died anyway. Either get rid of the option or make it matter.
These things are less gripes and just things noticed:
Your sex scenes are well animated but they're too short and the lack of dialogue makes them boring.
Is it Reven or Raven? Because you flip flop on that quite a bit.
MC's Mom is real piece of work, but his sister probably has the best ass in the game.
Full disclosure. Without the harem tag or an incest tag to make Lucia an available option I probably won't continue to play this game, so take my feed back with a grain of salt. I figured I'd post this comment anyway as it might be useful to the dev but if it's not then feel free completely disregard it. All the best with the game dev.