It's all because of your mother.
Chihiro can't stop thinking about what Yuri said to him. Do they have something to do with the lost memories of his childhood?
The past Kakihara describes to Chihiro is a heartbreaking tragedy.
Inuki desperately tries to save Chihiro as he despairs at his bloody fate.
Will they be able to change their destinies?
Just when he thinks he's found a glimmer of hope, Inuki is visited by his own terrifying tragedy!
But the nature of their research 
was never made public.
لكن طبيعة بحثهم لم تظهر للعلن
Aber das Wesen ihrer Forschungen
wurde nie publik.
Mas a pesquisa nunca foi feita pública.
Но характер их исследования
никогда не обнародовали.