What's Wrong with Secretary Kim? is one of the most popular K-Dramas out there, but before it turned into one of the highest-rated Korean dramas in cable television history, it was a novel by Jung Kyung-yoon and then later a best-selling manhwa. The manhwa features a love story between the perfectionist boss Lee Young-joon and his secretary, Kim Mi-so, who quits after nine years.
Source：https://www.cbr.com/whats-wrong-with-secretary-kim-similar-manhwa/
