Let yourself sing. "It's a deal" was jointly produced by Beijing Shangpinjie Film and Television Culture Co., Ltd. and CCTV. The TV series is adapted from Liu Zhenyun's novel "One sentence is worth 10,000 sentences", in which Confucius' sentence refers to a sentence that can trigger himself. The play is set in Yanjin, Henan Province in 1930s, and tells the story of China people's "thousand years of loneliness" from three little people.