Did you mean Yorinobu ? ('cause Saburo didn't want kill Hanako at all).Its only when she thinks (wrongly), Saburo wants to kill her that she changes her mind.
But it's not really wrong, in Star ending, Hanako is dead, certainly by order of Yorinobu... In fact, I think she only survive if you follow the Devil ending.
Anyway, Act 1 is a "tutorial", so to rush it, seem to me a good thing to do