She has to meet him earlier (Blood Route)

The school day started off well. He met up with some friends, the classes went well, and so on.

Half way through the day, Kazuma was about to have lunch when Satsuki came running into his classroom. She seemed really worked up. Kazuma could swear that she was avoiding looking at the other girls in the class.

"I'm sorry," she said as she approached Kazuma's desk. "I need to talk to you right now." Once she was at his desk, she grabbed his hand and started to pull him to the door.