It seems that Sakurako might be on to something about the case that her uncle gave to her. From this, what actually happened to Futaba after finding Hitoe alive in the cabin?
It have become apparent that Futaba’s disappearance has become very suspicious. After Minami decides to help Sakurako out in finding the whereabouts of Hitoe, it becomes apparent that Hanabusa is the guy that Sakurako’s uncle is trying to catch who he referrs to as the “Sphenoider.” He is behind the theft of sphenoid bones for years without leaving a trace.
Given that he can do the bidding by manipulating others and steal these bones without any evidence tracing back to him, it is astonishing. He sure tricked Sakurako in some of the mysteries she solved, especially with the three sisters. He brainwashed them to commit suicide. Sadly, he made one mistake in his plan. He forgot that teenagers are easily emotionally manipulated since they haven’t fully matured. This is why Minami and Hitoe survived although the two already did his bidding by burying the remains of their best friend, Futaba without him actually doing it. Shortly afterwards, the girls are now on bad terms with each other. Considering that the two girls are still alive, it’s only a matter of time until someone catches up and apprehends him.
It seems that Minami doesn’t like the idea that Sakurako is telling the truth about Hanabusa being the Sphenoider and attempts to kill her. While Shoutaro protected Sakurako by taking the blow, I won’t be surprised if Minami and perhaps Hitoe ends up in the hospital indefinitely for mental illness due to Sphenoider’s manipulation. Either way, Sakurako now have enough clues to find Sphenoider.
Either way, it seems that Sakurako is worried that the Sphenoider will come after Shoutaro next. Upsetting it might be, she asked Shoutaro to forget everything about her. It might be safe course of action to keep each other safe so they can stand a chance to catch him. Either way, I have a feeling that Shoutaro might find a breakthrough that she won’t think of that will become important in solving the case once and for all. We’ll see next time.