On the way back home, Gu Yi'an urged Tan Jincheng to take a hot shower.
She went to the kitchen herself. Although she wasn't a great cook, making some soup wasn't a problem.
Tan Jincheng had been in the rain for a long time, and it was easy to catch a cold. Gu Yi'an opened the refrigerator, found some green onions, only using the white parts, and took some ginger, washed and sliced it, and then boiled them in water.
Ginger soup helped to ward off cold, and boiling green onions in water prevented colds. These were basic common knowledge in traditional Chinese medicine. Although Gu Yi'an didn't study traditional Chinese medicine, she was quite clear about these basics.
After he finished his shower and changed into his pajamas, the ginger and green onion soup that Gu Yi'an was making was ready.