born artificially, she was once called Subject 1912. created by the scientists who are working for the hunters, genetically infused with wolf dna to make a perfect hybrid hunters for the humans to use against the wolves. one of the experiments was subject 1912, she was raised by the scientists and checks her from time to time to see if there is any resemblances towards wolves. however, she has a rare case of hypersensitive sense of smell, at a young age she always scrunched her nose when she interacts with other hybrids like her, sometimes she always got irritated because of it but she managed control it. but when one of the richest and most famous hunter went inside the laboratory, he saw the little 1912 smelling on the toys she was playing, he became very intrigued about how she's doing before he decided to adopt her.

Seulgi learned well of the lessons that her father had taught her, to be a hunter, must know that her job is not to kill but to protect, to honor those who have fallen to protect, to inspire the younger ones to respect the opposing sides, and to fight for the better future of their home. however, the virtues of her father didn't apply on her when her father was brutally killed by the enemy hunters who wanted to kill him out of envy and dragged seulgi into their hideout. there they mercilessly tortured the hybrid into submission and took advantage of her dignity and her body, her mind almost split into two when she remembered what her father had once told her, those who had done heinous crime must die. this sparked seulgi's mindset and mercilessly killed the enemy hunters who killed her father and almost killed her, her eyes filled with revenge and coldness in her which froze her once warm heart. she had thrown away what her father had told her, never again applied his ideal on her and created her own principle to kill anyone who dared to step on her way, whether they are humans, hunters or wolfs. she then took a step to be hangshui's foundation and hailed as hangshui's leader, by night she operates her decree to seize those people who does crimes at night and operates heavy patrolling over the city to secure the safety of the people. she used her hypersensitive sense of smell to detect anyone who is stabbing in her back, no one would turn against her unless they say it right to her face. hangshui is prosperous of advanced technology she invested on as the government gives out bio engineered hybrids to create newly enhanced hybrid to become hunters. before she founded hangshui, skyscrapers are already present in hangshui because of people's innovation and unique inventions they contributed in the city.