Bastian’s Family Secret is a crazy Japanese family entanglement story that shows you that social norms can easily turn around you. You play as a young man who feels for a pretty and rich young lady. And you start becoming part of her family, following orders and ensuring all of your in-laws are happy. But the in-laws do not care for you, and they use your servitude to abuse you in ways that become more and more lustful. Everyone around you seems to be a two-faced pervert. Will the humiliation end?