It Made Us Get Close

This game is about a student programmer-computer geek-guy, who is stuck with his mother's friend in a zombie post-apocalypse. They didn't have any thoughts about any romantic relationships, but in that situation, it just naturally happened to them. With every day that passes, they become closer and closer to each other. But they don't want to cross that line, because it's wrong for them to have that kind of relationship... He is a young guy, and she is a mature woman, plus she is his mother's best friend. But they just can't resist it, and with every day, they become closer and closer...