Well, Keine is not really a youkai, so she can still keep her cover as long as she doesn't expose herself to a full moon. However, those clothes are a give-away, aren't they?
My prediction on what to come: - Sakuya goes back home, but the class rep tags in out of concern. - Somehow, they meet a vampire on a Charisma Break spree. - Sakuya manages to buy some medicine to cure Patchy. - Since she is unwanted in the human's world, she decides to stay.
Stay out of the human world!After school...Please remember to go home together with a friend.Stand up~!Bow~!... However, recently, there are a lot of dangerous incidents.A grandma!? That's so funny!For real...?That's all.What? Isn't she a youkai then?That white-hair, she looks the same age as us, but actually she is an old hag...