Luo Liqi, female librarian
Wang Tianmo, female, Luo Liqi's good friend, radio host
Fang Qing, male, Luo Liqi's ex-boyfriend, lawyer
Qin Qi, male, Wang Tianmo's colleague, radio host
Gu Ziyue, female, has a crush on neighbor Han Luoyi, record store owner
Han Luoyi, male, Fang Qing's colleague