Mizuki: You know what really happened during the incident with the demon fox 12 years ago, don't you? Since then, the villagers have been bound by a strict rule.
Naruto: I don't remember any rule?
Mizuki: You wouldn't, as everyone in the village was meant to know it except you.
Naruto: Why only me? What was the rule?
Iruka: Don't say it!!!
Mizuki: The rule is nobody is allowed to tell you that what you really are...is the demon fox!