Do-yoon Han is the protagonist of Buried Stars. His baseline tone of voice is calm and level. Do-Yoon's label as the "betrayer" for leaving his band behind causes him a great deal of pain. He expresses this pain by sounding troubled and distressed. Do-Yoon takes it upon himself to be the logical center of the group. As a result he cares deeply how he effects others. He blames himself for major mishaps in both good and bad endings of this game, which drives him to a level of pain that causes him to break his typically stoic complex.  Someone who can master a calm and collected Do-Yoon without sounding robotic, and who can just as easily flip to the emotional extremes the character ends up going through, will be chosen for this role.