Ever since former screenwriter, Injoon Kim, was nearly taken to the underworld by mistake, he has been able to see Threads of Fate-white where fortune awaits, and black where misfortune looms. 3qc4v
This newfound ability quickly proves itself useful as Injoon becomes a manager in the entertainment industry and successfully saves the actress, Hye-ryung Yun, from a fatal accident.
Will Injoon be able to use these Threads to his advantage and bring Hye-ryung to stardom?
137 Chapters (Completed)

Honestly I was originally reading this while browsing manwha/webtoons to read. The premise intrigued me enough even though it was a bit boring in the beginning (I'm used to reading more action focused things).
Sooner or later I got invested in their lives but the ending is disappointing to say the least. [spoiler] I understand that he lost the power to view the strings but come on! Why end the story just because of that! They basically rarely used that after a while. [/spoiler]