Kyu has a calm and serene demeanor. He is a middleman for shady hitmen work, but his persona is a coffee shop owner. He still takes his barista job very seriously as he enjoys the simple things in life. He is bright, insightful, calm. Regardless of how furious he is over his co-hitmens’ unsuccessful work, he conveys it in a very civilized manner. His calmness makes him very intimidating when he’s mad.