Sunjeong Manhwa is a romance webtoon by Kang Full that was serialized at Daum in 2003. The popularity of this webtoon, along with The Great Catsby and Moss, lead to the rise of the popularity of webtoons in general and it's "long strip" format. At the time, it was the norm for webtoons' format to be a comic book page. It was also one of the earliest webtoons to have a serial storyline. Most webtoons at the time were the first generation of which were illustrated blogs or gag comics.

Original Webtoon:
Daum, KakaoPage

Sunjeong Manhwa was adapted as a movie, "Hello Schoolgirl" in 2008.