Everyone in the singing group "Hong Haier" has their own characteristics. Ma Guoxian likes to chat with people in a wide range of fields; Zhang Luojun has a handsome figure, and leads the girls' eyes wherever he goes. He always shows himself incisively and vividly; Tang Junyi is cheerful and often makes people laugh; Zhang Kefan is clever and naughty, and likes to dance disco. Han Zhijie is the younger brother of the whole group, often with an innocent and lively smile; Shen Yizhi is a super soldier, and the dance group of "TV Rookie Hegemony" won the championship seven times, which is the dance "domineering" of the seven people; The last one, Wang Hailun, has a foreign face, but his biggest hobby is China's calligraphy.