Visit from Jiahang's Mother

He Xiyan and Yuan Yuan returned home bearing bags of varying sizes. They had gone to the supermarket and bought two large bags of food, including vegetables, fruits, and snacks. 

He Xiyan took out these items one at a time and put them inside the fridge. Yuan Yuan wanted to eat an apple so she picked one up, peeled it and cut it into tiny slices for him. 

She was about to bring out a plate of sliced apples when she heard Yuan Yuan calling for her in the living room. 

"Mom, I think there's someone at the door," he yelled loudly. He had just emerged from the bathroom and was about to retrieve his sketchbook from the bedroom. 

The guests outside spoke to each other as they knocked on the door. 

"Is this the right unit?" Yang Yun asked as she looked at her niece, Gu Lin. 

Gu Lin looked at the text message that her cousin had sent her and checked the unit number once more.