Male 176cm Late 20s Birthday is January 1st Alias is Hayung Symbolic color is the Grey of Fantasy Extremely! Extremely! Extremely! Handsome! Black hair and black eyes, deep dark circles, and a gloomy impression. A handsome man with a beautiful, androgynous look! Uses the archaic 'hao-che' style of speech. Ends sentences with ~o, ~so, ~ryo. Quite taciturn and avoids getting involved with others, possessing a very pessimistic personality to the point of wishing for death. During conversations, he shows eccentric traits such as being unable to make eye contact and staring into space, obsessing excessively over the word 'ideal' (Yi Sang) to make puns, and appearing trapped in his own thoughts. Because he uses difficult and abstruse language, his introduction describes him as someone with whom everyday communication is difficult. However, as a former researcher with high enough intelligence to join a Wing, he is often seen analyzing his surroundings during missions. He personally created the 'Mirror,' the core technology used in LCB's transport, Mephistopheles. Even Faust, who prides herself on being the city's greatest genius, acknowledges Yi Sang as a genius, and most of the Sinners do not deny that he is an elite. However, he believes that displaying genius is meaningless, so he does not particularly highlight his own brilliance. When speaking English words, he has a unique pronunciation. Example: Corporation -> Corpora-shun Sign -> Si-ign