And to remind everyone, the dev has previously promised a harem ending.
I assume that the MC decides to take Chemistry 101 and ends up making a mind control drug by mistake, because I don't see any plausible path to a harem ending. And this update, and a previous, has scenes that makes it even more unlikely.
But, the game may have been i development for a couple of years, but there has only been about 30 in game days, and in that time the MC has been able to get into a relationship, and fuck, almost any woman in the game, which is as plausible as aliens giving the MC a mind control ray (see another possible way to get that harem ending!)