Guiyeoni is an internet novelist who wrote a book that became a movie, based on the novel, feature which actor?
Guiyeoni Guiyeoni (born 1985) is the pen name of internet novelist Lee Yoon-sae. She first reached fame with her novels "He Was Cool" and "Romance of Their Own", which spawned commercially successful films of the same name, as with another book, A Wolf's Attraction. Since then, one of her other books, "Do Re Mi Fa So La Ti Do", has become a film starring Jang Keun-suk. A movie of "To My Boyfriend" is also in planning stages. Despite her commercial success, Guiyeoni has been criticized for her lack of literary perfection, overuse of emoticons, and unrealistic setting in her works. Besides the aforementioned novels, she has also written "Africa", "Five Stars", and written and illustrated a manhwa called "Syndrome".
Socialphobia Socialphobia () is a 2015 South Korean thriller/drama film starring Byun Yo-han and Lee Joo-seung. It was co-written and directed by Hong Seok-jae in his directorial debut, based on a real-life story that explores the social issues within internet culture among the Korean youth of the 21st century.