Name: Yi Sang Gender: Male Height: 176cm Age: Late 20s Birthday: January 1st Affiliation and Rank: Limbus Company LCB Sinner #1 He is quite taciturn and tries not to get involved with others, possessing a very pessimistic personality to the point where he would rather just die. 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) while making puns, and 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 him as having difficulty with everyday communication. This is presumed to be drawn from the characteristics of the real Yi Sang's literary works, which are famous for being difficult to understand. In fact, his personality darkened due to an incident before joining Limbus Company; originally, he had a fairly bright personality, valuing friendship highly and getting along well with those he recognized as friends. However, after the League of Nine Littérateurs disbanded due to the influx of people following the invention of the Glass Window and pressure from T Corp—which cracked down on unauthorized inventions—his friends scattered and began to fall into ruin. This caused him deep emotional wounds to the point of losing his sense of self, leading him to develop a reclusive personality. Fortunately, with Sang Yi's help, he avoided the worst-case scenario of complete mental collapse. From Chapter 4 onwards, as he begins to recognize the Sinners as his new friends, his attitude softens significantly, and he starts showing his original bright personality again, such as smiling brightly and playing jokes. He becomes noticeably enthusiastic and talkative especially when tasked with explaining something he knows. However, he still carries trauma from losing all his friends because he was unable to do anything when the League of Nine fractured. He is characterized by a unique pronunciation when speaking English words. A representative example is his impressive pronunciation of 'Corporation' as 'Corporashun,' which is similar to the pronunciation used between the 1960s and 2000s. He has black hair, black eyes, deep dark circles, and a gloomy impression. The physically weakest member of Limbus Company. He uses archaic speech patterns, ending his sentences with formal, old-fashioned suffixes like ~so and ~guryo.