Really neat start for the game. Something I liked in that in addition to the resemblance between the characters, there were fun dynamics there. Especially the sister dynamic feels more closer to fleshed out one instead of being the virginal younger sister who knows nothing about sex/bitchy older sister who bosses the MC around. Something I'm intrigued by is the implication that there can be a bit more playing around with who the MC is as a person, no matter how limited it is. One of my issues with No More Secrets is that the MC themsef felt really all over the place, kind of, which I felt resulted from the mechanic focusing more on points/getting scenes rather than allowing more room to be a character. Don't know if that makes any sense and, to be fair, I feel it is a common issue in these kinds of games.
By the way, a lot of sympathis on the devs job loss. Here's hoping things work out best in the end.