In 2009, C Allstar, who had just graduated from college and had music dreams, participated in singing competitions and failed repeatedly. By chance, the four of them saw reports about "Ladder to Love" on the Internet, and discussed with producer Lai Yingtong, whom they met during the competition, and lyricist Zhong Qing, whom they met online, to write a song, and the song "Ladder to Heaven" was born. .

The song "Ladder to Heaven" was inspired by a true story. This story about "Ladder to Heaven" became a sensation in China after it was reported by the media in 2007: half a century ago, in the southwest of Chongqing, Chongqing, China In Zhongshan Town, Jiangjin, a thousand-year-old ancient town on the border, Liu Guojiang, a 20-year-old boy, fell in love with Xu Chaoqing, a widow who was 10 years older than him. For this shocking love at the time, they fled to an altitude of 1,500 meters above sea level on a cold moonlit night. For more than 100 meters, no one has set foot in the deep mountains and old forests. For more than 50 years, they stayed together and lived a life of pure love that was almost isolated from the world. In order to ensure the safety of Xu Chaoqing's journey when he went out, Liu Guojiang used his hands to stand on the cliff. 6,000 stone steps were dug out with bare hands to create a love home for two people.