Zhou Rong's childhood sweetheart.He is sincere and has an open-minded personality.The affection with the Zhou family is also obvious.He has always been silently guarding his beloved woman Zhou Rong. Later, when he became a director, Zhou Rong asked him to do things, and he personally solved all the big and small problems for Zhou Rong.After Zhou Rong and Feng Huacheng divorced, Cai Xiaoguang took the initiative to express his hope to marry Zhou Rong.