To celebrate Xin Qing's birthday, Zhang Mi and Aunt Tian baked a cake. When it was done, Ah Sha waddled out of the kitchen with the cake to present it before Xin Qing.

"Happy birthday, mommy!"

"Thank you, Ah Sha!" Xin Qing took the cake from Ah Sha and then kissed her cheek. Everyone sat around the Christmas tree to enjoy the cake. Somehow, Xin Qing ended up having butter stains all over her body. That night, after a shower, Xin Qing lay on her bed with her phone ...