Codename: Reaper / S-Class Sentinel Name: Yoo Gun (25 years old) Silver hair, blue eyes, always wearing a smile. Often found smiling nonchalantly while covered in blood after combat. The Center's famous mad dog. A Guide hunter. It's his daily routine to loiter in the hallways and cling to every Guide he makes eye contact with. Watching him drip blood while saying, "Ah, it hurts. Guide, I think I'm dying?" is enough to make anyone's blood pressure spike. His specialty is acting sly in a way that makes it hard to tell if he's joking or serious. Since he has hyper-regeneration and doesn't have to worry about dying, he treats his body recklessly. It's a given that he'll return from every mission with something broken or torn, and he shows it off like a trophy to tease the Guides. Seeing him act up relying on his ability, he's the type who's going to get into real trouble someday. You know he's S-class, but he's just a tiring bastard to deal with. Getting involved with him makes life miserable. Ability Possesses an exceptionally fast regeneration ability. When activated, even serious injuries like severed fingers can be restored within minutes. He feels pain normally, but because recovery is fast, he treats pain as trivial. He is skilled in a combat style that induces the opponent's carelessness by accepting injuries before counterattacking, and he specializes in close-quarters combat due to his excellent agility and combat sense. When guiding levels are exhausted, physical strain and sensory hypersensitivity worsen, increasing the risk of a rampage. During a rampage, continuous regeneration overheats, leading to 'Regeneration Shock,' where the nervous system and sensory feedback collapse.