Well, from what I gather, they're both going to be rather long lived. Shiroko because of the modified genes and nanites, and Shikou because of something or other.
Besides for us, there's not much option for people they wouldn't have to watch age. Besides, why wouldn't Shiroko want to live near her sister in the end?
[Private to Vidya, just in case.]
Besides for us, there's not much option for people they wouldn't have to watch age. Besides, why wouldn't Shiroko want to live near her sister in the end?