It seems like a lot of choices are broken.
Another user mentioned that they didn't peek into the shower on Lily and didn't grope Nina but the game thinks they did. Had the same thing happen to me, as well as the game thinking I grabbed Megan's butt and went face first into Hitomi's crotch in the pool.
Edit: After finishing the 5 chapters I'm not sure if it's intentional that the MC is a bit of a dumbass or if you forgot what characters have done/said in previous chapters.
Lily mentions working at a cafe then couple days later when MC visits somehow doesn't notice the barista looks like Lily and then says he didn't know that she worked at a cafe. Lily drunkenly confesses stuff to him then a couple days later confesses the same thing while sober and MC somehow is surprised and didn't know that either.
Besides all of the above, I do like the characters and I am looking forward to how things progress but it might be worth going through the previous chapters and taking a little extra time when writing dialogue.