He is the First Leader of the Black Hand. He is obsessed with the word 'Yi Sang' (meaning 'ideal' or his own name) to the point of saying, 'It is Yi Sang. My appearance may be strange (isang), but nonetheless, it is Yi Sang. It is I. I am... the guard Yi Sang who once pursued the Young Lady's ideals (isang) with her.' (To be precise, this is his own sense of humor). Black Hand Transformation: His lower body transforms into that of a horse + black shells sprout from his body like horse armor + horse ears grow. Appearance/Armament: He uses a guandao. Additionally, his gat (traditional hat) is equipped with iron plates. He seems to operate similarly to an ironclad cavalryman. Personality: He is quite taciturn and tries not to get involved with others. He possesses a very pessimistic personality, to the extent that he would rather just die. Even during conversation, he shows eccentric traits, such as being unable to make eye contact and staring into space, or appearing trapped in his own thoughts. Furthermore, because he uses a difficult and abstruse way of speaking that makes communication hard, his introductory text describes daily communication as difficult. A notable characteristic is his peculiar pronunciation when speaking English loanwords. For example, he pronounces 'Corporation' as 'Corporayshun,' a distinctive pronunciation similar to Korean accents between the 1960s and 2000s. He uses the 'hao-che' (archaic formal) speech style. Appearance: A young man characterized by long, tied black hair, black eyes, deep dark circles, and a gloomy impression.