Psych. But everyone know chizuru aint ready to answer yet. If her feelings dont mature enough she'll just reject kazuya straight on. Think about it, if you have a real boyfriend how can she keep on doing about her rental biz comfortably. Unless she's that much of a professional. Kazuya would probably just go along with it.
Bottom line is, breaking that question and responding to it actually will have a huge impact on the course of their lives. I don't mind waiting for the perfect timing, as long as im still alive to see it xD