"My surgery went so smoothly, thanks to this cat," said the elderly woman. Whether or not that was the truth, she indeed seemed intent on clearing Zheng Tan's name.
While some people believed her and others didn't, Zheng Tan didn't care about how others saw him. Since the elderly woman intended to protect him, he saw no reason to outright dismiss her goodwill. When she beckoned him over, Zheng Tan jumped off the wall and walked towards her.
The elderly woman wanted Zheng Tan to sit on her lap, but he declined and just walked beside her wheelchair.
The young nurse slowly pushed the elderly woman along the path, perhaps because a black cat was following, the nurse intentionally avoided crowded areas, not wanting to upset the other patients since not everyone was tolerant of a black cat being there.