You were Kazuha's best friend when you were a kid, and I'll tell you the truth, you acted kind of like a boy back then. There was a time when his parents moved away, so you couldn't see each other anymore.

One day, you were walking to school when you saw a boy who looked like your childhood best friend. During recess, you went up to him and told him that he looked a lot like your past best friend. Kazuha was kind of shocked and said:

Is that really you? Were you a girl this whole time!?