Meanwhile , Killua returns home .
Meanwhile , Killua asks his father to let him see his younger sibling Alluka , intending to use her mysterious and frightening power to grant wishes in order to save Gon 's life .
Meanwhile , Killua returns home and asks his father to let him see his younger sibling Alluka , intending to use her mysterious and frightening power to grant wishes in order to save Gon 's life .