I can end you

SUMIRE

The first few days after what happened with Yuhi, she made sure to stay by his side and eventually both of them had to return to work. Since then they have had a lot to do, so she has been too occupied. 

But, not once had she forgotten.

How could she forget?

Even though Yuhi seems to be okay when she touches him, he sees the haunted look in his eyes when he is around other people. Especially individuals of the opposite gender. When another girl so much gets close to him, he shudders and has that clouded look in his eyes.

How could she forget, when she has to see him suffer every day?

'I'm going to murder that woman.' That's what she told Yuhi in a fit of rage. Yuhi probably thought she was joking, and probably didn't take her seriously. But she was. 

When she told Celia to check out the blood sample from that time Miyazawa attacked her, Sumire already decided that this woman couldn't live.