It'll be VERY hard to keep it from her, so I think Kurama is going to want to talk to the Principal and keep this from Shiori as long as he can guarantee surveillance for Botan and also make her see a shrink or whatever at school. This would be the last thing Shiori needs, especially after the talk at dinner. She'll find out, but that's when Goshikuro has already taken her. Since she's ignorant of what her 'Shuichi' really is, he'll spill it to her in great detail. You may skip us to the greenhouse if you feel it ideal for us. I don't think Kurama has much more to say or do until they hit the greenhouse and begin to take a look at her powers. By all means, focus on your PM's, I have no issue with that.