Yi Sang

Appearance: Yi Sang is a man of average height [176cm, 5'9"] and build. He has short black hair which frays slightly at its ends, and dead-looking black eyes adorned with notable bags underneath. He wears the long-sleeved version of the Limbus Company coat around his shoulders, which appears to have been tattered and burnt at the bottom. Underneath his coat is the regular long-sleeved white shirt and red tie, and then a black vest, both of which are tucked into his belt. Written on the left breast of his coat is 'NO.O1', and 'LEE SANG' on the side. Yi Sang wields a dagger as his preferred weapon, which stays fitted to his left hip through the use of three small black straps- two of them connected to his belt, and one wrapped around his thigh. Yi Sang's weapon is a saingeom (사인검, lit. Four-Tiger Sword) in the shape of a dagger kept in a sheath on the right side of his body.

Personality: Yi sang is a particularly quiet, mellow man. He fails to stand out much among his fellow sinners due to his tendency to stay silent and watch rather than actively contribute to discussions. On top of this, when he speaks, his words are often obscure and riddle-like whilst also delivered monotone. His expression never shifts much either, and he is yet to express any strong emotions. Nevertheless, Yi Sang does not come off as unkind. He appears to care for the people around him in his own way. Similarly, for the most part the Sinners seem to accept him as simply being a peculiar person, rather than interpreting his attitude negatively or getting frustrated with him. All in all, for the time being, Yi Sang is most effectively described as mysterious and reserved.

Backstory: Yi Sang is a former member of the League of Nine Littérateurs, a society of inventors and scientists, alongside Gubo, Dongrang, Dongbaek, Aseah, Young-ji, and three others. The members of this society were all from the S Corp. backstreets, having emigrated to T Corp.'s district to avoid corruption and to seek research opportunities. Yi Sang picked up a job as an architect, designing factories for producers in T Corp., which allowed him to comfortably fund the League. During his time there, he developed the "Glass Mirror", a device capable of reflecting the alternate worlds and timelines of the viewer, modeled after a concept (the "Glass Window") by Young-ji. After a raid by T Corp., the League fell apart. Gubo whisked Yi Sang away to safety to an N Corp. laboratory, where Hermann and Gubo would attempt to gather a new League of Nine to further research the Glass Mirror. Yi Sang defected after Hermann wanted him to research destroying all the possibilities reflected in the mirror. He was then found by Faust who invited him to Limbus Company; there, he would refine his Mirror into the identity system capable of pulling forth the alternate selves and abilities of the Sinners into battle. At some point in his life, Yi Sang managed to become the youngest chief researcher of an unknown Wing; it is unknown when or why he left, although this likely refers to his period at N Corp. Notably, during the group’s exploration of the old L Corp., Yi Sang is surprisingly talkative- albeit still in his usual, perplexing way of speaking. When Ishmael points this out, Faust explains that he wasn’t always like this, and that he just “had a shift recently”.