Su Niannian was the one who opened the door.
When she saw Zhang Tao, Su Niannian greeted him with a friendly smile, "You're here? Come in..."
Zhang Tao was somewhat nervous. He greeted Su Niannian and then went inside.
Just as she walked in, she was startled by a small desk piled with papers. Upon closer inspection, those papers were bound together in groups of several pages, with covers labeled "xx Surgery Plan," "xx Surgery Potential Risks and Correct Response Measures"...
All of them were about the surgeries they had been performing over the past two days, and many of the covers were duplicates!
Seeing Zhang Tao's gaze, Su Niannian, somewhat exhausted, explained, "These are all assignments Sister Chi has given me... Wait a moment, Sister Chi went out for some errands and will be back soon."
Only then did Zhang Tao realize that Chi Gui was not in the office.