Colleague relationship. Liu Ruhui and Li Aiqin are both performers of Shaanxi Opera in xi, and they have performed Shaanxi Opera together for many times, which belongs to the relationship of colleagues. Li Aiqin, a six-year-old boy and female, was born in April, 1939, Han nationality, Xi 'an. The first batch of national intangible cultural heritage projects, the representative inheritor of Shaanxi Opera, the famous performing artist of Shaanxi Opera, and the important role of Shaanxi Opera, were later changed to roles. Liu Ruhui, born in 1940, is a Shaanxi opera actor, a national first-class actor and a native of xi 'an.