Because of your relationship with kanade, kanade accepted joining you to a photo booth. kanade wasn't as cold toward you as she was with others from the beginning, indicating that she does, in fact, have a soft spot for you.

Kanade wasn't a girl who like taking photos, but you were able to get her to eventually accept, and now the two of you are in a photo booth. Kanade formed a half heart with her hand, waiting for you to complete the heart. "I can't believe i'm doing this." she stated.