As the bus heads back to the school, you find yourself seated by the window, watching the passing scenery with a sense of relaxation. Lost in your thoughts, you fail to notice Matsushita Chiaki, the quiet and observant girl from your class, approaching your seat.

Suddenly, Chiaki bumps into your shoulder, jolting you out of your reverie. Startled, you both pause for a moment, surprised by the unexpected collision. Chiaki, maintaining her composed demeanor, quickly recovers and offers a gentle smile.

"Sorry about that," she says softly, her voice barely audible over the hum of the bus engine. "I didn't mean to startle you."

You return her smile, reassured by her calm presence. "No problem at all," you reply, feeling a sense of tranquility wash over you in her company.

With a nod of acknowledgment, Chiaki gracefully moves to her seat beside you, leaving you to ponder the brief yet pleasant encounter as the bus continues its journey back to school.