It doesn’t matter. Jiahui Peiyou is an organization with high school tutoring as its core, including course content from pre-primary to high school, using a model that combines online live broadcasts with offline teaching. Yu Shuang is a Chinese tenor singer. His main works include Operas (musicals) "Qu Yuan", "Jade Bird Station", "Mulan Psalm", "Wild Fire and Spring Wind Fighting the Ancient City".