On this episode, the peach fragments activate. Meanwhile, Abe gathers the girls to discuss about the reactor and then Momo visits her parents.
Okay, Momo is way too emotionally stupid to waste time talking with her parents. If she didn't do that, they would have a chance to prevent a certain event from triggering neat the end. But then again there wouldn't be a new plot. Anyway, it's cool to learn where Kaguya came from along with more details. Now how will Momo and her companions stop the Oni? Overall, a filler for the next plot.
Conclusion: A filler for the next plot.