Yangui Sumsori

Kim Jeong-Hyun, who works as a reporter at a broadcasting station, is instructed by the deputy editor to attend a charity party held at an old house. The atmosphere of the informal gathering, attended by various wealthy individuals, is not very good, and feeling tired, Kim Jeong-Hyun decides to take a nap a little earlier. That night, in his dream, Jeong-Hyun dreams of being assaulted by a mysterious man.

(Source: Mr.Blue, translated)

Note: Chapter count includes 2 side story chapters.