Before I read this. Is the new emperor good or bad?

Undetermined. The whole first season is about the couple getting a bit more comfortable sharing a life. As we enter this second season, her dad seems to be willing to play the villain. But new emperor's deeds beyond the marriage of these two are out of our sight.

It's a slow burn romance and good for you: you don't have to wait before the plot starts to deviate from them. We've had that just now in chapter 46, kind of.