The theme of the opening song of Animal World appeared several times.

twice. "Animal World" is an action adventure movie directed by Han Yan and starring Yifeng Li. In the introduction, it can be seen that the theme of the opening song always appears twice. The film is adapted from the comic book "Gambling Silent Record" by Japanese cartoonist Fukumoto Nobuyuki, which tells the story of Zheng Kaisi's participation in a mysterious game on a cruise ship and his survival.