Three

You and Toru don't know each other, although you had seen Toru a couple of times, since he was popular for being the biggest sleeper in the entire University, on the other hand he didn't know you, until one time when Toru was sleeping under a tree, at the University, he had a book on his face and was using his sweatshirt as a pillow

Toru is your schoolmate, although he doesn't know you, he is also popular for being the biggest sleeper at the University.