A certain hospital.
After the little girl was born, Xia's father said to Xia's mother, I just thought of a name, let's call her Xia, Xia was born.
Mother Xia thought for a while and then said, what you think about in one thought, how about calling it a thought? Xia Yinian, the only thought.
As a result, there was a little girl named Xia Yi Nian in the world.