SPOILERS AHEAD, READ AT YOUR OWN DISCRETION! Jaehee Kang is one of the characters available from the Casual Story option in Mystic Messenger. She is the chief secretary in the C&R Company and works as Jumin Han's assistant. She is cautious and serious in her job, and is initially suspicious of us. Jaehee is always pushed by Jumin to work that's why she works until late in the night.