Han Sunhwa

"White paper" atau "baekji" dalam bahasa Korea adalah istilah yang diciptakan oleh netizens dan gips dari Invincible Youth yang merupakan setara Inggris dari persona pirang bodoh yang digambarkan oleh Sunhwa dalam acara. Her "White Paper" role attracted Korean viewers because of its funny character. Because the "White Paper" character attracted the attention of Korean viewers, she played a huge role in increasing Secret's popularity through "Invincible Youth" and other variety shows. However, the "White Paper" character was not without its flaws, she confessed “I felt sorry for my members that I became known as the "White Paper" character. I really wish I could have done it with a better character.” Selama episode di Invincible Youth, gips acara mengakui bahwa mereka akan melakukan sesuatu yang lucu dan tidak biasa ketika set menjadi membosankan. Dalam berbagai wawancara, Sunhwa berulang kali mengatakan bahwa karakter "White Paper" hanyalah karakter.