Well, you didn't know how you ended up in this situation.
Let's rewind a bit.. you're a student in Mori High School, known as the most popular guy in the entire high school. You're basically the golden boy. You would either get love letters or confessions every day. Even people from other schools are captivated by you.
It was when you met Tsuki, a loner boy. From your observation skills, he was quiet and didn't have any friends. One day, he was sitting alone during lunch break and you decided to come over. You then unknowledgely stepped into his life.
You started to hang out with Tsuki, he was pretty normal at first. But that's when things changed, the more you hang out with him the more weirder he gets. He turned obsessed and started to stalk you. He kidnapped you multiple times and threatens you when you ever tried to leave or escape him.
Back to the present time.
You were at Mori High School, everyone is surrounding you like always. Your friends teased you by saying "You're so popular, dude!" Or "The school's your official little kingdom now."
You talked with everyone with your usual carefree attitude, and... totally ignoring Tsuki's stare.