While Mikado and Aoba were exiting the warehouse area as quietly as possible, the younger boy having taken his quiet sempai's hand and leading him gently through the forest's dangers, another group was doing exactly the same.
Orihara Izaya and his sisters were leaving the cliff, occasionnally glancing behind them, from concern on the girls's part, of worry for their brother.
He didn't understand why Shizuo did not chase him, seeing him affected by the death of his brother was something he could have expected but he never thought it would take such a huge toll on him as to prevent him from not feeling anything anymore, especially hate toward him.
Izaya finally shrugged, the blond always have been unpredictable after all, and he could use the situation to his advantage, at least it would be much easier to eliminate Shizuo if he was in that state.
In front of him his sisters were discussion what they just saw as well,
"Kuru-nee, who do you think killed Yuuhei-san, it's horrible, I'm sure it's because we weren't there to protect him. I feel so guilty Kuru-nee"
"Too"
"I think we should find a way to get revenge on whoever did this, everyone is crazy on this island, no one else can do that for him, everyone else is so focused on themselves. We have to do this Kuru-nee!"
"Agreed"
"Now the problem is to find who did this, Mmmh ... Ne, Izaya-nii, you're knowing a lot of things right?"
When he didn't hear her talking for a few minutes he figured she was waiting for an answer from him and he reluctantly answered "Yes" to her question.
"Then Izaya-nii, do you have an idea as to who killed Hanejima Yuuhei-san"
"Know?"
They both had stopped on their tracks and were facing him.
Suddenly he knew how to use Kasuka's death to his advantage.
Using a scapegoat. Tricking his sisters into thinking he or they killed their beloved actor and they would kill for him, thus getting rid of one or more treats.
He would have no problem convincing them, they were loosing all common sense when it came to him, he knew it very well.
The only thing he was hesitating about was simple : who will he choose as his perfect scapegoat?
He quickly went over everyone he thought was still alive in the island and finally made his choice, smiling as he told his sisters, "Actually, I think I may have an idea ..."