Total Knockout! [VIRAL HIT/HOW TO FIGHT]

'We received a request to call out and take down a bully that's been recently prowling the streets of Gangbuk!'
A voice rang out, loud and authoritative. Her breath caught in her throat at the familiar sound, hands loosening from her schoolmate's collar. She looked over her shoulder, eyes dragging from the finger pointed at her to the fierce glare on his face.
'A bully who beats up and threatens kids who pass by this street!'

Nobody really says much about Chu Nari, unless it's to remark on how quiet and weird she was, or to remark on her creepy lack of presence. And Nari didn't mind it at all. Without the attention, she could maintain her NewTube channels, scour the Internet, and explore the streets of Seoul to her heart's content. But after a chance encounter with Yoo Hobin, Nari found herself getting slowly entangled in a string of fights that kept escalating over time whilst revealing the dark side to some of NewTube's top channels and their connections to her cousin's kidnapping a few years ago. Not only that, but she now has to use her skills to fight instead of performing, she's now reunited with a childhood friend who she had to leave on bad terms, and she has to set up a new NewTube channel to fit in with the new company she's now apparently a part of! But before all that...

'Watch closely. Lesson three refresher of how to fight. How to fight and win: against taekwondo.'
Is he serious?

!DISCLAIMER!
How To Fight/Viral Hit belongs to Park Tae-Jun
Cover was illustrated by Kim Junghyun
!COVER IS TEMPORARY! (until I find the time and motivation to finally draw my own)