Liu started performing in the Shanghai dialect in 2014. At that time, he noticed that many young Shanghai residents could barely speak the local dialect, which he believed was one of the city's main cultural pillars.

He also discovered the problem of disappearing local dialects was not confined to Shanghai. In many cities across the Yangtze River Delta region, a growing number of people were unable to speak the predominant Wu dialect.

To make a difference, Liu gathered rappers from four other cities across the region in 2018, and formed the group JZH League. With the shared goal of promoting local dialects, they released six songs that integrated their respective dialects, attracting extensive attention online.

"I love hip-hop, love our country and cultures. These songs stand for not only hip-hop, but also showcase our cultural roots and its diversity. I want them to be well kept, better understood and widely shared," said Liu.

The positive early feedback motivated Liu to broaden his goals. In October 2019, he initiated the Chinese Languages project to celebrate the 70th anniversary of the founding of the People's Republic of China, inviting 20 rappers from across the nation to rap their messages in 20 dialects.

Two years later, in July 2021, Liu spent four months organizing 32 rappers from 28 provinces and cities nationwide, co-creating the Rap A Song for the Party. All rappers joined in with their own dialects to mark the 100th anniversary of the founding of the Communist Party of China.