In a metropolis, the night city square was always bustling with noise and excitement.
The music from the shops, all types of transit ads, the lively beats of hip-hop and the ethnic trend music from the old ladies.
However, tonight , more and more people began to gather towards a corner that nobody really paid attention to before.
"Hey, look over there, there's a cat knocking a bottle!"
"Knocking a bottle?"
"Yeah, I heard that it's owned by one of the wandering singers, they're selling their talents right now!"
"Sounds interesting, come on, let's take a look!"
"Mum, I want to see the bottle-knocking cat too~"
"Alright, let's go and see that bottle-knocking cat."
…
