chapter 197 A major breakthrough in medicine

In the evening, Chen Ning returned home.

The family is back, and Ma Xiaoli is preparing dinner in the kitchen.

Song Pingting, who was helping her daughter with her homework, saw Chen Ning coming back alone. She was surprised and asked: "Chen Ning, why are you the only one coming back? Where is Tong Ke?"

Chen Ning said calmly: "My cousin has a party with her classmates. She said she didn't need me to pick her up. She would come over by herself after the party."

Song...