Jumin is a quiet, serious, and cautious man who, as the oldest member of the RFA, acts as the logical and pragmatic voice of the group. Despite this, he frequently jokes with the other members, even if they berate him for it and don't seem to understand his strange, dry, and convoluted sense of humor. 

His general cadence is almost childlike, often being innocently unaware of social conventions outside of business dealings. He is a workaholic himself and often works his assistant, Jaehee, to the bone as a result. Jumin disregards others' opinions of him, so he lives his life however he wishes, which on the surface portrays him as unsympathetic and haughty. Even so, he cares deeply for the other members of the RFA, and does not hesitate to use his money and authority to help any of them when necessary. While he bickers with Zen, he still considers him a close friend, and even finds his irritation amusing at times. He is surprisingly fond of Yoosung and sees him as secretly capable, even if the rest of the RFA doesn't always agree. He seems to respect Seven to an extent as well, even if his pranks go too far for his tastes, and frequently trusts him with important tasks.

Voice Quality/Tone: Medium to low pitched. Generally quiet and formal with a very slight monotone-like quality, but can portray an extremely dry sense of humor or quiet rage when necessary.

Voice Reference: https://www.youtube.com/watch?v=p8ZYptQ2OgA