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.
He is not afraid of death because Dante can always revive him. He is hometown friend of Dongrang and Dongbaek.