Who plays Rong Er in Palace 2?

Name: Jiang Ruijia Gender: Female Birth: 199 1Mar 08 Constellation: Pisces Birthplace: Jinan, Shandong Height: 167cm Weight: 43kg Education: Theatre Academy, favorite singer of the undergraduate class of performance department in 2008: Faye Wong, Eason Chan, Tanya Chua, Mavis Fan, Yoga Lin's favorite game.