隨著時代的進步與科技發展為人們帶來便捷的生活，同時在都市化的過程中，人與人的距離卻變得更遠，當人們一回神才驚覺自己身在一個充滿冷漠的世界，城市只剩下交通吵雜的聲音，人群之間缺少互動或是噓寒問暖，為了喚醒以前彼此友好的關係，讓我們從打招呼開始，向你的身邊的朋友說聲嗨!!! The progress of the times and technology brings people convenient life, and also in the process of urbanization, the distance become longer between people. In the huge city, we are strangers, walk pass by and far away. If we have more interactions, maybe it will melt the cold world. In the past, the penguin can fly. But their wings degenerated. Just like the residents' mouth in the film.
