Moon Hyuna/Synopsis

History
Before Awakening, Moon Hyuna was a professional tennis player. At some point, she Awakened into an S-rank Hunter. She was approached by an unknown group who offered to construct a Hunter guild of which she would be the puppet leader, allowing her to act independently as an S-rank while gaining the benefits and avoiding the responsibilities of being a guild leader. She agreed, and became the leader of Breaker Guild, heading it as it grew into one of the three biggest Korean guilds. She was known to favor a large spear as her weapon.

Two years after the dungeons appeared, at 5PM on on April 2nd, she was involved in an incident in the CS convenience store located in Icheon city, Gyeonggi-do. The particulars of this incident are not known, but the implication that someone else knows about it causes her great alarm. It is described as an unforgettable, embarrassing, and crazy incident, and in the original timeline, was used to make her lose face 7 years after the dungeons appeared. At that same time, the guild disbanded.

Synopsis
Moon Hyuna first appears when the large Korean guilds are negotiating with Han Yoojin to make a contract wherein he'll raise kiseungsu for them, representing Breaker Guild. She was likely the one to bring the skill appraiser, Hansoo. She reappears for the monster broadcast led by Han Yoojin, conversing with him casually about his role as kiseungsu rearer and discussing the guild leaders' positions. In particular, she points out Han Yoohyun's strange nature and how it's slightly suspicious. When Han Yoohyun calls and Han Yoojin brings up the embarrassing incident of her past, she realizes he's not someone to take lightly and stops pushing him, switching over to befriending Bak Yerim, whom she gets along with.