Shin Jiyeh is a director at the SW Corporation, and the fiance of Lt. Kang Hamchan. She is also Yu Ijin's boss when he began to work as a part time bodyguard at the SW group.
Shin Jiyeh is known for her business acumen, being in charge of several industries at a young age. She has a bitchy personality according to her cousin, Yuna, and likes to insult people with a smile on her face. She resents Shin Yuna because the latter easily received her share of wealth and grandfather's favour without hardships, while Shin Jiyeh as a teenager had to work extremely hard to compete against her father and brother to earn recognition at SW. She dismisses her younger cousin as an irresponsible brat. On the other hand, Shin Jiyeh favours Yu Ijin for his competence as a bodyguard, although she worries about him carrying out hazardous duties as a teenager. She is also aware of Ijin being acquainted with her fiance, Lt Kang.