C40 Chord Fluctuation

Chi Zaozao returned home.

When Chi Xiaobao heard the door open, he noticed Chi Zaozao had returned. He looked at the clock on the wall and asked in confusion.

"Mommy, why did you come back so early?"

Didn't she say that there was a part-time job today? How did he get home in less than two hours?

Thinking about what happened in the hotel not long ago