Title: The Cutting Edge
Author: amber_rose
Characters: Do Kyungsoo, Kim Jongin and Song Hyejin (OC)
Genre: Romance, Drama, Fluff
Description:

"All you need is a pair of good scissors to get you through the day."

That was what her father said to her when she first stepped into the shop, and that was the motto that she lived by ever since.

Small town girl, Song Hyejin grew up with a pair of scissors in her hand, spending her high school days in her father's barber shop cutting crew cuts for young men who were enlist in the army; that was how she was intending to spend the rest of her life. When top star, Kim Kai walks into the shop one rainy day demanding that she give him a haircut even though it is past opening hours, her life gets thrown straight into a raging hurricane known as the world of showbiz.

======

Enter Do Kyungsoo, hairstylist to the celebrities, touted by all the country's fashion magazines as the golden hands that could catapult anyone, literally anyone, from obscurity to stardom. When his limelight gets stolen by the head of hair atop, Kim Kai (whom he callously rejected to style just days before), his ego takes a beating that he will never forget.

When he finds out who it is who was responsible for his humiliation, he vows to show this clueless surburban girl what it truly means to be hair-raisingly good with a pair of scissors.

story link
author link

I haven't offically read it yet, but base on the description, it seems good. :)