[Onee-sama. One word that answered all of her questions and brought up so many more. At the moment only one comes to the front of Ai's mind.]
Why aren't you my imouto-san?!
[She points an accusing finger at him even as he moves closer and this male is most definitely a member of her family. The younger sibling Ai wanted out of her mother and Zero. Her pout is childish but she does it anyway.
Another step down towards him puts him in reach and Ai reaches out to touch his hair. Gentle but curious, it's silky smooth as she suspected.]