Two hours earlier...
Arcane had just finished lunch, as it was lunchtime. He walked out of the cafeteria and headed back to the teachers' room to prepare for his next class after lunch break.
As soon as he entered the teachers' room, he found an envelope on his desk. He looked around, curious about what kind of envelope was on his desk at that moment. Because previously, the envelope was not there.
Someone had put it there.
"What is this envelope? As far as I remember, I didn't put any envelope here. Did someone put it there?" he muttered.
He opened the envelope and read the letter inside. It was a small card with a request for him to come to a certain place.
"I'll wait for you on the school roof. Please come after lunch."
At first, he thought the letter was ridiculous because he didn't know who sent it or why someone would ask him to come to the school roof.
