It's not a bad start. The plot seems fine for a porn game. But let's get into the problems.
First of all, the English, at least on Day 1, is a disaster. Numerous misspellings, wrong tenses, sometimes weird word choices... Day 2 is significantly better, but still has some facepalm moments. A proofread is absolutely necessary.
Continuity is also not perfect. For example, Lucy "knows" the MC spied on her, even if he didn't. For example, Shanice says during her scene at her house, "Almost I forgot how big you are," even if MC denied her in the restroom, and she therefore never saw his dick. I'm also not sure about Mia bringing up the FWB thing to MC if he kissed Shanice but not her; maybe it's just me, but that feels a bit off.
I also noticed a mislabeled line. When Mei leaves, she says, "See ya, new boy!" but it looks like MC says it.
Anyway. I hope the dev manages to clean up the script. If you can look past the terrible English, this is a decent game, and I'd love to read more of it.
(version 0.2)