Kwai Lun-Mei after playing a student in SECRET (BUT NUNG SHUET DIK BEI MUK) was typecast as an innocent girl but she wanted to break through the idea. Not only did she not want to play a student but in recent years she also tried different characters. Yet in the new film REST ON MY SHOULDER she played a student again, which she said she did completely because of director Jacob Cheung Chi Leung. She also revealed that this character was very difficult since she had to play the age 16 role at age 26. She even said that as long as the director had the guts she would consider challenging the ugly character "Yu Fa".