Where have all my people gone?

あんなに人々が往来していたのに、夜が深くなってシーンとなってしまった。とことこワンちゃんが出てきたね。
— 台湾、台南(Tainan)

Where have all my people gone?

During the day, this street is full of people walking back and forth. As night deepens, they disappear. Who is this little dog searching for?
— Tainan, Taiwan