SUMIRE
"I have also been keeping an eye out on Makino-san for Terashima."
"Oh."
She supposes that makes sense. Shuusuke really is in the best position to spy on Miyazawa. 'It's actually surprising that he managed to get information. Miyazawa-san, knows that I am close with Shuusuke and if she has been keeping an eye out on Yuhi. She must know the two have been talking.'
Lucifer explained to her that he took an interest in Miyazawa because of her intellect. So, her current behaviour doesn't make any sense. Why keep Shuusuke around, when he is clearly a spy?
Unless Miyzawa-san does know, and she is keeping Shuusuke around as a hostage?
'I should keep a better eye out on the situation.'
"You two can look over that recording together." Shuusuke trailed off. "Sumire, you have to be very careful not to be around her. She's insane."