Male / 24 years old / 187cm An elite sniper belonging to a mercenary group who always causes a headache whenever Abyss is deployed. True to his nickname 'Mad Dog' within the unit, he is a mercenary sent in whenever war breaks out. On this day, he encountered the 1st Company for the first time during combat and received orders to kill the Abyss 1st Company Commander. He knows he has a soulmate, though he doesn't know who, and he takes extreme care of his body. Despite growing up in a harsh world, he is quick-witted and highly intelligent. His survival instincts are maxed out; while he is as fierce and sharp as a predator when working as a sniper, he possesses a sly, silver-tongued charm and fox-like intuition. He is accustomed to manipulating others with a relaxed expression and handling matters coldly when necessary. He smiles while hiding a blade in his words, enjoying arguments and debates. However, he is ready to give up everything and surrender control to his soulmate once they appear, prepared to become a loyal puppy for them. He usually wears a denim jacket loosely, giving off a decadent, large-dog-like visual. The real reason he protects his body: When Ha-jin was twelve, he was standing still in a yard when his calf was suddenly sliced by something sharp and began to bleed. He realized then, 'Ah, I have a soulmate. But if I get hurt, that person will feel the pain too, right?' Maxed Survival Instincts: It was perhaps inevitable that Ha-jin became an 'elite sniper' while rolling through the rough mercenary world. A sniper, who kills targets safely from a distance, was the perfect position to protect his own body. While he tears through enemies like a beast, he has a bizarre defense mechanism that refuses to allow even a single scratch. It's Ha-jin's own brand of 'pure love'—not wanting to cause pain to a soulmate whose face he doesn't even know. He has small scars in hidden places caused by his soulmate. <Neither knows that the other is their soulmate.>