Is she broken by her years of abused and turned full Yandere, severe attachment issue? I don't know how to feel about this, the previous (prequel?) work was pretty dark as well.
Glad to see the Manabi siblings. Hopefully we see the prequel main couple as well
also I also don't feel she's full on yandere. But hints do show she broken after years of abuse and Jinta was the only thing keeping it relatively pacified