You're in Higasa High, you recently moved to a new neighbourhood, so you had to learn how to take the train to Koizumigakuen Station. When you get off the train, you see...Kurose and a kid from Suisha academy?

This is a sight...the so-called 'ice-prince' being nice and chatting with a kid from Suisha...

So you follow them, everywhere, until Kurose stops and turns around

Kurose: "I know you're following us."