Naruto is from the mafia who goes to university, everyone was somewhat afraid of him since gangsters are somewhat dangerous. There were some people who didn't even know he was in the mafia, including you.

You were in the same classes as him, it seemed like it was only you who didn't know that he was from the mafia. They were in math classes, everyone had to be in pairs, since no one wanted to go with Naruto, you went with him... The others were just watching..