Shirou does some tests to see what happened

"Do you feel ok?" Shirou asked, concerned that her fainting might not be related to the notebook.

Sakura gently nodded. "I feel good, master. I'm sorry you had to catch me."

"You don't have to apology. I'm just glad you're ok," Shirou said as he helped Sakura back onto her feet. Once Sakura was standing, Shirou carefully let go of her. Sakura turned to look at Shirou and smile. "Thank you, master," she said pleasantly.

"Why are you calling me 'master'?"

Sakura paused for a moment, seeming a little confused. She put a finger up to her chin and thought before she answered. "I'm not sure, master," she began. "I just know that you are my master now."

Seems like it worked, but just to be sure, Shirou thought to himself. What should I have her do?