Solo Leveling Fans

Cha Hae-In's history in "Solo Leveling" involves her journey as a Korean S-Rank Hunter and Vice-Guild Master of the Hunters Guild. She is the wife of Sung Jinwoo and the mother of their son Sung Suho. Before becoming a hunter, she was a famous track athlete but an ankle injury ended her athletic career. She then awakened as an S-Rank Hunter and earned the nickname "The Dancer" due to her swift killing of beasts during raids, though she later prohibited the use of this nickname as she found it embarrassing.

In the story, Cha Hae-In first encounters Sung Jinwoo during a raid on an A-Rank Gate. Initially, she senses a powerful presence and investigates, eventually realizing that Jinwoo is different from other hunters. She becomes intrigued by him and later participates in a mock battle with other S-Rank Hunters, where she notices the unusual aura around Jinwoo.

Cha Hae-In's interactions with Jinwoo continue to develop, and she becomes more involved in understanding his true nature. She participates in the Jeju Island Raid Party and trains at the gym of the Korean Hunters Association, where she again notices the distinct air around Jinwoo.

Throughout the story, Cha Hae-In is portrayed as a serious and calm individual who cares about the lives of others. She often patrols around boss lairs to ensure the safety of guild workers and has no bias against lower-ranked Hunters, unlike most higher-ranked Hunters.